I can definitely agree on Uncharted being the best PS3 game currently, with Ratchet and Clank being second best.
After that, I'd choose from these:
Assassin's Creed - If stealth and stabby time is your thing, yet you can overlook a bug, quirk, or splatter-death here or there.
Warhawk - If running over people with a jet sounds cool to you.
Call of Duty 4: Modern Warfare - If you thought World War II lasted longer than it should have and wish to finally fill things with lead in modern times.
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