Just for starting this thread off as being the largest console video game database on the web
I'll list what I can think of my collection off the top of my head..
PlayStation 2:
God of War (AMAZING) -I definately need God of War II
Blitz: The League (the loading/saving times on this game are PATHETIC!)
Devil May Cry: Collectors Edition (Actually havn't played through them yet)
DBZ Budokai 1
DBZ Budokai 2
DBZ Budokai 3 (okay games)
Mortal Kombat: Deadly Alliance (not bad)
Dark Angel: Vampire Apocalypse (pretty boring game)
Final Fantasy X (Was okay, have never played one as good as FF7)
Time Splitters (fun party game, nice and chaotic)
Grand Theft Auto 3 (great fun to mess around with)
Disgaea: Hour of Darkness (love it)
Makai Kingdom (not as good as Disgaea imho, but still fun)
Disgaea 2: Cursed Memories (love this too)
I need to get Guitar Hero I & II, those games rock
PlayStation:
Final Fantasy Tactics (really fun, pre-disgaea, havn't beat it)
Final Fantasy VII (best FF there is)
Yes.. I only own 2 playstation games, lol. Legend of Dragoon is awesome too, I need to purchase it.
N64:
Zelda: Occarina of Time (AWESOME)
Zelda: Majora's Mask (not so awesome)
Super Smash Bros (AWESOME again)
Jet Force Gemini (fun game)
Killer Instinct Gold (another good one)
Super Nintendo:
Mortal Kombat (old school, got to love it)
Street Fighter II (hours and hours of goodness)
Super Star Wars (never played more than 5 minutes or so)
There are alot of games not listed that I own because I hardly played them or just can't think of them at the moment