W2 absolutely. Great value because it's dirt cheap these days (5$ or something on sale?). W1 is quite old and I would only suggest that for the hardcore fans.
Witcher 1 is very different from the other two games. Kind of old school RPG but with added on timed clicking combat system that feels clumsy and stiff.
Watch this
Play W2 and then W3
Hate is pretty strong word. Closer would be dislike. I had few deathadders and they broke right after warranty ended. Good mouse but poor durability. Never went back to Razer products after that.