Best gaming mouse for my wife?

Logitech M100

Hmm, I use the Steelseries Rival 100. I'm not sure if it's size is considered big or small. I recommend, that you take a look here =D Reddit MouseReview

View attached image.

Steelseries FTW! Sensei Raw feels pretty good, Kana too (but not much of a gaming mouse, this Kana). Both fit my small hands +1. U can buy Sensei Raw for about $50.
Rivals get all of the attention now, I know. But they're ugly as f for me.