Haven't even played 10.
Valkyria Chronicles, Disgaea 3 and BlazBlue so far are the only ones I've actually enjoyed enough to includein a Top list. Maybe Demon's Souls once I find the time to devote to it.
And Tales of Vesperia on top of the list because it simply is going to be better than the xbox360 version and I already like that one more than those I already listed.