heres a list, unbiased, but really in the end, I think you should pick according games u want to play.

ps3 avatar sucks, xbox got customisable better avatar
xbox used games cheaper, ps3 used games pricey
ps3 got built in wifi, xbox no wifi
ps3 built in batteries for controller, xbox needs aa batteries
multiplatform games generally less gltichy on xbox, ps3 gets sucky ports (like bayonetta)
ps3 community in malaysia is better cos now official, xbox community is kinda limited cos no official support and lots of modded console
xbox games are waaaay much more variety, ps3 games are limited
ps3 exclusives generally have better graphics than xbox 360 exclusives
ps3 lacks splitscreen coop game, xbox have a few more than ps3 (like left4dead)
xbox live gold is lagless, ps3 depends on screamyx
xbox got lots and earlier release of jrpg, ps3 usually get late
xbox live is worth it, playstation plus sucks big time for now
ps3 can surf net, xbox is limited
ps3 got 3d, xbox probably wont cos limited disc space
ps3 got bluray, xbox got hddvd
xbox got earlier dlcs for most games, ps3 got earlier dlcs+goodies for EA games
xbox id can integrate with gfwl, same id play pc games also adds your gamer point, ps3 trophy+achievements limited to ps3 games
ps3 can support most wired usb joystick/joypad, xbox only some are compatible
ps3 got move, xbox got kinect
xbox got smaller hdd, ps3 bigger
xbox got free headset, ps3 need buy one, which is pricey
xbox got that power brick thingy, some ppl find it bothersome, ps3 just plug in
xbox operates noisier than ps3
xbox have much much more classic pc games, ps3 got their psone classics
some pc games are only ported to xbox, like Mass Effect, Splinter Cell, ps3 dont have such exclusivity
xbox live got more feel cos most ppl use headset, ps3 not all have headset, hard to communicate
xbox got bundled games which saves cost, ps3 dont have bundled games even though they have higher capacity
ps3 got some bluray defect, xbox no such thing
ps3 can share dlcs and psn games, up to 5 consoles, xbox currently cant, the current exploit will get u banned