I am not sure how much help I will be but I will try,I used to be a PS3 ONLY guy,the graphics and audio are just really kick ass(Blu-ray)speaking of Blu-ray if you need a player the PS3 is the BEST player hands down,loads just as fast as a DVD,stand alone players can take up to 2+ damn minutes loading,this SUX!

comparing the 2 controllers though is entirely different,the PS3 is small and kind of uncomfortable,but the 360's controller is perfect,fits really nice in your hand when playing for several hours LOL.

I compared RE5 and Dragon Age Origins from PS3 and 360 and the PS3 looked slightly better,but the game play I hate to admit it was a bit smoother on the 360.

So coming from a guy that has ALL systems,I find myself playing my 360 a lot more than my PS3 these days,plus Mass Effect 2 is coming next Tuesday and I can't wait!

also look into what games you like,because each console has some games that are only for that console,like Mass Effect for 360,but PS3 has the GREAT game Uncharted and Uncharted 2.

LOL I probably was really no help in this.