I personally like the PS3, but everyone has their own opinion. Sure XBox 360 has Halo 3, and most people vote the 360 just because of that. Some features you may not know about the PS3 though are:
Internet Connection [Fun Fact: Im writing this only my PS3 right now.]
Can still play music, access other features, and still play movies. Just more advanced than the PSP's interface.
And just those games just for the PS1/PS2/PS3
Everyone likes their own system and their own play style.
Peace.
~Ryan~