I want to change my mouse but I confuse to buy the new one. which one is the best ?

Both ball mouses and infared mouses are good to me, i actually prefer to use a ball, to me they seem more durable than the infared, all you have to do to make em run smooth again is to open the bottom and clean em out. Am currently using an infared one tho, they both work fine to me : /

I have an infrared one, and it just doesn't seem to be working as well, as it used to, I can't figure out how to make it rune better though. With a ball mouse, i would just scrape off the lint buildup on the rollers.

Buy an optical mouse or if possible a laser mouse. They are far more precise and accurate (up to 2000 DPI as far as I know) compared to a traditional ball mouse. There are also less mechanical parts which means less of a chance of a hardware failure and virtually no maintenance as opposed to a ball mouse which needs to be cleaned every once in a while.

Get with the 21st century and pick up a optical mouse.

I use an infared, i dont have any problems with it though. i love it.

I've been using an optical mouse for years now (the same exact one in fact), and there's no going back to a ball mouse. Who wants to keep cleaning it out? What a pain. All you need is a proper surface for it; I use a metal mouse pad made for an optical mouse.

I have the Logitech MX1000 Laser mouse that came out last year. It's ergonomic, has a rechargeable battery built in, it's wireless and has a laser eye which has even more precise tracking than an optical. It's an awesome mouse, I haven't had a single problem with it, it has an on/off switch so that you can preserve battery power unlike most of Microsofts' wireless mice too. It's one to consider anyway.

@~karbonfyber
optical and laser are the same...different word for the same exact technology...

@shikonxx
infrared? i've heard of optical and laser, but infrared..that's a new one...i'm pretty sure all 3 are the same tech tho...someone please correct me if i'm wrong...and am i wrong in the belief that infrared waves are invisible, as they're out of the visible light spectrum? i've never seen a non-ball mouse that didnt shine red underneath...

@terraforce5000
it's logitech's MX tech that makes the MX-series more precise, not any laser, as all optical mice use lasers (correct me if i'm wrong..bring proof)

and finally (whew), in response to the original topic, choose the one that fits you best...i'd bet that optical/laser would be best for anyone, simply because the tech is so much better, not to mention so few moving parts in them...i have 2 mx518's, and wouldnt have anything else...not even the G7 mice interest me...wireless interfaces dont interest me at all in this aspect...

joll69

@karbonfyber
optical and laser are the same...different word for the same exact technology...

@shikonxx
infrared? i've heard of optical and laser, but infrared..that's a new one...i'm pretty sure all 3 are the same tech tho...someone please correct me if i'm wrong...and am i wrong in the belief that infrared waves are invisible, as they're out of the visible light spectrum? i've never seen a non-ball mouse that didnt shine red underneath...

@terraforce5000
it's logitech's MX tech that makes the MX-series more precise, not any laser, as all optical mice use lasers (correct me if i'm wrong..bring proof)

Well, yes you are wrong. Optical mice use LEDs to track and laser mice use (wow go figure) laser light to track the position of the mouse. Each one has different pros and cons such as how accurate they are and what surfaces they work best on. Also, technically all light-emitting mice are infrared. The red (I have a blue one too) LED that you see is to aid the infrared LED in tracking the surface.

You want proof?
Cnet: Laser vs Optical
Computing.Net: Laser vs Optical

Wikipedia

In 2004, Logitech, along with Agilent Technologies, introduced the laser mouse with its MX 1000 model. This mouse uses a small infrared laser instead of an LED, which according to the companies can increase the resolution of the image taken by the mouse, leading to around 20× more sensitivity to the surface features used for navigation compared to conventional optical mice, via interference effects.

Modern surface-independent optical mice work by using an optoelectronic sensor to take successive pictures of the surface on which the mouse operates. Most of these mice use LEDs to illuminate the surface that is being tracked; LED optical mice are often mislabeled as "laser mice". Changes between one frame and the next are processed by the image processing part of the chip and translated into movement on the two axes using an optical flow estimation algorithm.

Excellent research, karbonfyber...i was curious to see if anyone here knew that...now i know :D

Karbonfyber is very correct (nice research indeed), but it doesn't answer the important question of which mouse to get. So for the more practical approach, here's my contribution to this topic ^_^.
To start, you will have to know what you are doing, or wanting to do with your computer.
If you only use your comp for browsing and typing things for school/work, a simple ball mouse with scrollwheel will do. Though, you will have to clean it once in a while for optimal tracking (dust works like a brake on the tracking wheels). The other option is getting a cheap optical mouse (which costs almost the same as a ball mouse). This one won't need any cleaning or w/e. Handy!
Though, if you also play some games on a regular base, you will soon find out the big problem of a cheap optical mouse. Especially in FPS games, your cursor/crosshair often happen to 'fling' due to the, for the mouse, unexpected moves resulting in malfunctioning traction. Therefore, they invented the gaming grade mouse. Those are, as you can expect, more expensive, but absolutely perfect for everything, from checking AP to intensive gaming. Though, there are some mice on the market labeled 'Gaming mouse', like the one of Trust (cheap brand, never buy anything of that). So basically, the list of top mice is: Logitech MX518 (Optical), Logitech MX1000 (Laser), Logitech G5 & G7 (Laser), Creative Fatality (Optical).

Hope this helps, good luck micehunting.

Extra note 1: The meantioned 'flinginng' isn't happening in all games. A friend of mine can play UT perfectly, but BF2 absolutely not. He got a cheap Logitech internet mouse.
Extra note 2: I have an MX518 and although I've played with 'better' mice as the G5, I still like mine better, mainly because of the 2nd side button (very handy in games).

Remember the most important thing when buying a mouse, make sure that it's comfortable to use. It doesn't matter if you get the best mouse in the world, if it's uncomfortable and makes your hand hurt.

Go to a local computer store and try out some mice.

I would highly recommend getting an optical or a laser mouse, over a ball type.

I currently use a Logitech MX310 with Windows, and a wireless Mighty Mouse for OS X (very bad for gaming as you can't right and left click at the same time). I prefer using a graphics tablet though.

I like infrared. The ball mouses after a while tick me off, to a point where your banging them to get them moving...get an infrared one, or something like it.

If your mouse goes through a lot of torture *COUGH GUNZONLINE COUGH*, you're better off with a ball mouse. Otherwise, with your every day stuff, using a standard laser mouse works just as well.

Oh yea, 2 more things. The first one is like DeepDragon said, your mouse needs to be comfortable. Especially when computing a lot and using a special shaped mouse, like the MX1000. For instance, that same MX1000 is too small for me.
Secondly, the wired/wireless issue. Imo it's very simple: NEVER TAKE WIRELESS. Then again, I'm just looking at the problems it brings for gamers like me (not so funny when your mouse dies while you're in a fight). The wireless G7 got a nice solution though (2 fast replacable batteries). But still, if you got room for wires (when your PC and monitor are placed on/under a desk against the wall, for instance, there's no problem at all), go for a wired mouse, which is cheaper, lasts longer and reacts better.