As I was web browsing, I stumbled upon this. It lists the best selling games for the major international markets. Check this out.
PlayStation 3
North America: 1. Uncharted: Drake’s Fortune (SCEA), 2. Ratchet & Clank Future: Tools of Destruction (SCEA), 3. Gran Turismo 5: Prologue (SCEA), 4. Devil May Cry 4 (Capcom), 5. Blazing Angels II: [...]