What's your best NFS game?

The only NFS game I've ever played is Underground and it's one of, if not, my favorite racing game. I love how much customization you have with your cars. I'm sure Underground 2 is better, but I never got around to playing it.
You should try NFS Most Wanted, friend..I bet you'd love it most & get addicted to it in a day! Thanks for checking up here