Statistics based on 511 csgo pro players information (Mouse Devices).
BenQ Zowie - a clear winner, no one came too close. BenQ/Zowie has always been popular among pro players, but over the past few years even more CS:GO pro players have begun to use BenQ/Zowie mouse devices.
The ergonomic (non-symmetrical) shape of gaming mice is more popular among pro gamers. But there is no clear advantage.
In CS:GO esport, optical sensor is clearly more popular.
Mouse wire types among pro gamers in CS:GO. Wire, of course, dominates. But before, pro gamers did not use wireless mouse devices at all, but now the percentage of such pro players is growing.