I was using the CM Storm Xornet II because I loved the clawgrip design, but just recently switched back to my Logitech G402 Hyperion Fury. Even though the fit (for my grip) isn't quite as comfy as the Xornet II, I have found it to be a bit more smooth and accurate!
Have a Rival 100 and just got a Rival 300, both of which I like. The 300 is clearly a notch better in performance all around, but the 100 actually felt more comfortable for my kind of claw/fingertip hybrid grip. However the 300 does fit right into hand with a palm grip and with a little adjustment will feel better I trust. Rival 100 is now by far the highest performance mouse in our office at work
Razer DeathAdder Chroma. Next time I'm going to change, I've used Razer mouses for the past 4 years now.