Logitech G400 and Mx518 are decent (not anything i would use as my first pick). With Mx518 you need to overclock your mouseport though, and G400 = make sure you get a later model, because the early models use prediction.
Further more, there is no best mouse. It's all about preference. Makse sure the mouse suits you, and most of all that it uses a flawless sensor. If you like mice formed for right handed ppl specifically, i would suggest Speed-link Kudos RS. A new mouse, with perfect sensor and imo great grip/feel.
/Regards