Ar Tonelico Qoga is a fanservice game. The combat is pretty bland and not much of a highlight, but if you, a girl, enjoy stripping a female to make her more powerful in battle...you might like it. You also get to delve into your two main females thoughts and shit. It's all very ecchi and weird and crap. Ended up buying it at launch (a pretty cool LE, and I got it for free with pre-order...), and I don't regret my purchase, but with that said I never did finish it and really have no motivation to do so.
I've owned Record of Agarest War Zero for AGES. Heard a lot of bad things about it, but the limited edition was sweet so I bought it...but my modded PS3 couldn't play it bahaha. But really the reviews for it are awful. Guess I should try find time to play 'er.
Resonance of Fate got my vote. It's a pretty unique, hilarious and overall just damn fun game to play. It's also pretty weird.