Playstation2 was great. And as for PS3 I just recently got one and have really enjoyed MLB 07 The Show, Ninja Gaiden Sigma, Resistance, Virtua Figher 5 and Motor Storm. There's also stuff like The Darkness, Rainbow Six, Oblivion that are good even if you can find them on 360 as well.
This fall we get Ratchet and Clank, Uncharted, Folklore, Heavenly Sword, Haze and other good looking games are on the way. And of course there will be another Twisted Metal, Gran Turismo, Jak and Daxter, God of War and other games that make the PS consoles great.