I think 360 is better, more games, better online... I have both consoles and it's true that the ps3 games look amazing, has LittleBigPlanet(which is practically a reason to buy a ps3, it's why I did), free online, runs a hell of a lot quieter and plays blu-ray but the online gaming doesn't work at all due to how strict the console is with NAT type, and it's very possible that you may experience this problem.
But really, if it's between the two consoles, definitely 360 would be my suggestion, it's has really great games to get online (ie. Castle Crashers, worms, N+) and also has a greater, wider selection of games to get in stores, most of which are worth playing.
If you do get a 360, then get a warranty because after about a year, the red ring, unfortunitely, is inevitable but still the console is worth it.
Either way, I wish you the best of luck with your new console whatever it may be