What XBox360 game should I play?

i would go with fallout 3 or new vegas.im on my third play through of new vegas right now.last time and this time i am doing as many missions as possible before i go to the strip to take care of benny.i am idolized by the boomers,ncr,novac,goodsprings,the brotherhood of steel,liked by the followers and freeside and i haven't taken care of benny just yet.i have 85 hours into this play through so far,both of the others i had 325+ hours into each of them.fallout 3 game of the year is another great game that i love to take my time in and get all of the unique weapons and armor to use against all of the baddies.i have characters in this game with 350 - 450 hours or more,i love doing every thing possible when i play these games.hope this helps.have fun gaming.