Oh man...all of them...that is a chore and a half. I'll go current Gen, sounds like fun.
Blue Dragon - 8 Very childish story but everything else is pretty awesome.
Fable II - 9 Tons of fun and pretty funny game. Definately made me stay up late playing it.
Fable iii - 7.5 Don't know what happened. Maybe it was just a been there done that feeling but I didn't have nearly as much fun with this one.
Infinite Undiscovery - 7 Decent and fun battle system...same with the story. Nothing special but I stil enjoyed it.
Lost Odyssey - 9 I was pretty surprised by how much I liked this game. Thought it had a great story and I really liked the battle system. Could have done without the twin characters but the other characters were pretty awesome...didn't much care for most of the character designs but the actual characters were good.
Mass Effect - 10 Epic/amazing/must play/awesome awesome story
Mass Effect 2 - 10 pretty Epic...but not as epic as part 1 but for the lack of epic story it made up for it with improved gameplay.
Star Ocean: The Last Hope - 6 Good lord the characters were annoying and the story was pretty bad. Good thing the battle system was decent.
Tales of Vesperia - 9.5 My favorite tales game so far. Yuri is one of my favorite RPG characters. I loved the story but was dissapointed that the story tuned into every other Tales game about 90% of the way through it but still awesome.
Wow - 360 had way more RPG goodness than I thought
Disgaea 3 - 8 They're all about the same gameplay wise but for some reason it just wasn't as cool as the first one.
Eternal Sonata - 8 I liked the battle system/story was half way decent but what I really loved about this game was how gorgeous I thought it was when I played it.
Final Fantasy XIII - 8 I actually embraced the new battle system and found enjoyable but I miss the classic battle systems.
Valkyria Chronicles - 8 Battle system is incredibly enjoyable but man was that a boring story (except for the the Valkrie - that was pretty cool).
Kingdom Hearts 358/2 - 9 I loved Kingdom Hearts
Kingdom Hearts Re:coded - 7 I love Kingdom Hearts but this game was eh...decent I guess. I will say that the battle system was better than 358/2 days but the story is lacking.
Kingdom Hearts Zero: Birth by SLeep - 11 I'm bias, I really really love Kingdom Hearts games but I would say that this Kingdom Hearts game is the second best in the series behind Kingdom Hearts 2.
My favorite RPG of all time would be Xenogears - if they remade that I would be one happy dude.