FFXIII was one of my favorites as well (although I've only played a few), I played it through on both PS3 and Xbox360, but never 100% all the side-quests etc. From FFXIII-2, which I didn't really like that much compared to the first one of the trilogy, I got the platinum trophy since it was lot easier than in FFXIII, although I'm planning to 100% that one day too. I'm planning to get the Steam version out of FFXIII at least, but need to get a new HDD first, lol, this one's way too packed ;w; Plus I'm still in the middle of LR:FFXIII so... yeah.
Great thing they patched in graphic options, anyway