Xbox has better games while the PS3 has better graphics. Both have network failures at times, but both are still fun. PS3 controllers take some getting used to but once they are mastered, you are unbeatable 
(except by another of the PS3 clan). I've found the Xbox controllers to be much more resilient than the Playstation DualShock controllers (I hated losing, ah, those dents in the walls bring back fond memories of times past).
(This is highly opinionated and not based on data whatsoever).
actually, the PS3 has more exclusives than 360 does. which all of them are ether rated within the same level or higher then 360's 3 exclusive games.
what sucks tho is that the ps3 suffers on multi-platform games because of the 360's lack of ability. game developers have constantly said that the reason why the games are coded on the 360 and ported to ps3 is because the 360 cant support the level of design or coding the ps3 has.
only way i see that the 360 was succesful is because its a cheap console, and microsoft has shelled out major $$$ in advertisement deals, etc to put the 360 in the limelight.
and recently its been exposed that microsoft has been paying companies to sabotage ps3 games when it comes to mutli-plats. the first developers to come forward and expose this was the former infinity ward. who stated that activision took huge payoffs from microsoft to make the ps3 versions of COD's online have lag problems/matchmaking issues, and other nagging annoyances. otherwise the 360 version is "perfect".
