Forget all the marketing ******** about all the blink mice.
A mouse should provide precise tracking without all the positive/negative acceleration and angle snapping nonsense. Also please use optical mice, stay away from Lazer mice with all the 8000 dpi bullcrap.
Best is to find mouse with the sensors ADNS 3310, ADNS 3888, ADNS 3095 or at the very least ADNS 3090.
If die die must razor, their best mouse is actually their entry mouse, the Abysses. Deathadder also borderline acceptable.
G400s is the best mouse i have ever used, CM Xornet is the most comfortable i used. Expensive mouse does not mean good mouse, cheap mouse does not mean louya mouse.
Hope i have been of help