For PS2 + 360 + Wii, including backwards compat, these are some the best:
Note a lot of these never came out in europe though(not sure where you're from, I assume america or at least the ability to play american releases from your list).
I don't want to waste time describing them in case you've already played them, but if any take your fancy I'll be happy to go into depth.
Breath of Fire 3
Final Fantasy IX
Saiyuki: Journey West
Dragon Quest VIII
Persona 3 : FES
Shadow Hearts 1/2/3
Disgaea 1/2 (don't play if you hate grinding)
Tales of Vesperia
Skies of Arcadia
Paper Mario: The Thousand-Year Door
Baten Kaitos Origins
The Last Story