G500 is gooding. forget about Kana and Kinzu, it is one of the most stupidest mouse that exist around. DA, Xai, G500, G400, Spawn etc.
I thought Sidewinder stuff no longer in production already..?

Expect the Sensei I have used/experience all of the mouse you listed so I can give you some personal usage feedback among the mouse
The choice is up to your preference, type and usage.

Logitech G9X
> Claw Type Mouse
> Matte Plastic Body
> Adjustable Weight
> Interchangeable Grip (Soft Rubberized Grip / Durable Texture Grip)
> Smallest among the mouse you listed but tend to be a little heavy.
> 5 Onboard Memory Profile(each different Profile would able to customize various of colors you want)
> Smooth Scroll Option

Logitech G700
> Palm Type Mouse
> Texture Grip on Side Button Area, Matte Plastic on Top Surface
> 5 Onboard Memory Profile(unlike G9, Profile Change was limited to Yellow Color and it selected in LED Up & Down)
> Wireless/Wired Type (Comes with USB Dongle for Wireless Connect and Micro USB Cable for Wired Operation)
> Most Button among the List
> Smooth Scroll Option

Microsoft Sidewinder X8
> Palm Type Mouse
> Full Matte Plastic Body
> Full-Time Wireless Type (using Magnet for attach/detach towards the round charger/connection dock)
> Mini LCD Display (Able to show DPI Value, Icon of Recording Macro)
> On-The-Fly Macro Recording

Razer Death Adder
> Claw/Palm Type Mouse
> Rubber Grip Top, Glossy Plastic on Side
> Cheapest among the list
> Lightest among the list
 
Steel Series Sensei
> Palm Type
> Metallic Finish Top
> Onboard Custom Profile Settings by using the LCD at the bottom
> 5 Onboard Memory + Awesome Multi-Color Changes on Scroll Wheel and the Back of The Logo in different profile
> Customize-able Logo on the bottom

good 1,thx 
i think as a mice newbie like me, i might try g500,kana or kinzu 1st,cheaper wat...so next time i change to more expensive 1..i will feel "WOW"

waa u so mad bout kana n kinzu ha...to me kinzu is quite good la but for kana i still curious its existence  .

nnnoooo kana or kinzu. :3 swap it for deathadder or g400 instead.

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Added on June 12, 2012, 6:41 am
kinzu is below average, the sensor is just crappy. Kana's one too, and IINM, both of them sharing the same sensor.

Not Kone+ right?

Nobody use legendary microsoft intellimouse 3.0 anymore?

Nobody use legendary microsoft intellimouse 3.0 anymore?

im still using with white color SK Gaming signatures

Nobody use legendary microsoft intellimouse 3.0 anymore?

hail to the legend....wait for it......dary  even tho this mice d exist so long still i din hv a chance to try it 

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Added on June 12, 2012, 5:26 pmis there other mice tat using the same sensor as ikari optical?

roccat kone+ , logitech g500/g700, ss sensei...which 1 better? 

They are not so good, but won't consider them as bad.
Basically, some time sensor considered bad having many factor, 1 of the problem of kinzu and kana are they are not compatible with all surfaces and work well. Therefore if you using them with a proper suitable surface, might solve certain problem.

Shape and comfort-ness wise, just individual personal preference.

There are lots of fps gamer still using IME 3.0 which they think suitable their palm the best, just maybe not so active in forum only.

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Added on June 12, 2012, 10:23 pm

Any problem with Ikari laser? Why looking for optical sensor?

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Added on June 12, 2012, 10:26 pm

Basically all of them are different, how can we compare them.

Sensei is ambidextrous, kone+ is ergonomic, g700 is wireless, G500 is not in the same price range with another 3, that's why i will say they are totally different.

What about the sensor for SS Xai or Sensei?

can i ask mouse pad here??

ss qck mass
ss qck
ss experience 1-2

ss qck mass extra thick for wat??
ss experience is made by glass, izzit better than cloth?

What about the sensor for SS Xai or Sensei?

I cant game with my DeathAdder, too comfortable makes me lazy to move

still prefer my Kana for FPS

yeah b4 this i ever encounter a very disturbing problem wif my ikari laser when the cursor suddenly went crazy, jump all over the screen which u cannot control it at all..and to solve it, I disassemble the mice, observe the mice board and found out that there was some burning happened on the board it can tell by some black smoke color on it..so I padam it wif eraser and cuci cuci then assemble back, WAlla!! the cursor went back to normal  but atm I feel that the sensor gone a lil bit too sensitive coz i can c the cursor always vibrating all the time ...