I dunno. Theme of Simon, Room of Close Associates, Aquarius, Iron Blue Intention, Silence of Daylight, Heart of Fire, Clocktower's Beat, Cross Your Heart, and Clockwork made for some pretty awesome classic songs.
And on the newer side of things are Fate to Despair and Proof of Blood (lol, retconned).
I dunno. Maybe it's just me, but I've been finding Sotaro Tojima more likeable these days than Yamane. :\