Burnout 3 Takedown Burnout Revenge, Burout Dominator, which 1 better?

I really cant pick which one I want but I already have two other racing games but not in burnout series. My mother said i can but 3 games for my ps2 so i picked need for speed carbon, midnight club3 dub remix and a burnot which i dont now which. also can u tell me how do u play a game online. what do u need.