I think everyone will have their own opinion but for me personally I went from a G9x to a CM Storm Spawn and its pretty comfy mouse, solid build, feels nice though it doesnt have the ability to change shells like the G9/9x did that was also one reason why I didnt like the G9x was when I did fast swipes or circular motions I felt the shell or the mouse rattling. It does take time to get used to having the ring finger on its own rest pad but everything is good so far. I havent really looked into other claw type mouse so my options were limited. I wasnt particularly fond of the minor acceleration on the G9x so when I played a game that was sensitive to that it kinda threw me off but for other games it was fine. Even thought the spawn is red and I have a blue/black theme setup it doesnt bother me much lol.
One thing I particularly like on the storm over the G9x is the middle button/wheel is easy to click, on the 9x I had to actually give it some effort to click down also I dont particularly have large hands or small they're pretty average and it fits right on it just fine and I recently converted to softpads and it works pretty nicely on it. There is a black version (Xornet) and that is the 2000DPI version should be coming out soon but overall I'm satisfied with my purchase