What is the best version of NFS?

I think the best version of need for speed series is need for speed most wanted.This game is so thrilling and its graphics is amazing. Need for speed carbon is good but it has the night races and the visibility is not so good.Graphics are also poor cooperatively. Need for speed underground is a easy game. it is also night racing game.Hear the car models are not so good. Need for speed hot pursuit is a small game.The main problem hear is you need the game Cd to play.Here number of races are also less than the other versions. And I am waiting for the need for speed pro street.I think it will be a good game.