Razer Deathadder(Black Edition(Normal)), comfortable ergonomic shape and definitely worth getting over the normal V2 due to the rubber sides and has been strenuously used in CoD4 and now osu with no problems.
Probably the only decent product(without a better competing product) from Razer.
Well I guess I use a normal mouse, don't really know what kind of mouse constitutes as a "big" though lol. Anyway I use a MX Revolution BT. And tbh, it kinda sucks; drops out whenever it feels like it.
Since i play osu! i have my 3rd mouse A4 Tech(shittest mouse ever) it is a little bit larger than average mouse,i had a little bit smaller mouse than the average , and also i had i a normal mouse ))..now i got tablet..