What people should do is do more research about both systems and see that there's more to offer on each side than the obvious statements. I happen to own both systems and love pretty much every offering there, I tend to lean more towards the classics, arcade, shmups, Japanese and other fun games. ^^
Altho I just recently got into PS3, I already picked games I like and will start more arcade and shmups later.
http://www.psnprofiles.com/VixyNyanMy 360 collection is much more broad than that.
http://www.trueachievements.com/mygames.aspx?gamerid=284902Also, both PSNProfiles and TrueAchievements has a wide list of games you can check out to see if they are interesting or not, but their purpose is more into collecting trophies or score for your account.
I don't hate PS3, I just hate how it's eff-ing region-free for games and the 360 is not.
The 360 "is" region-free, but developers choose how to code the regions for each game. That's why some games can play on some consoles and others don't.