What game do you think will reign supreme in the FPS category,Activision's Call of Duty:MW3 or DICE's BF3?

I myself am a long running Battlefield fan.I like battlefield for the intense,immersing game play with vehicles and destruction.It adds a realistic feel to the multi player.But I never played MW2 and wondering if MW can compete with the Battlefield series.Tell me your Personal thoughts,along with real proof from trailers or past games.