I think the RPs listed below are among the best I've seen:
Hell Has Broken Loose: I explained the reason for this already
War Of The Shadows: Again, already explained. Also, because it was one of the first RPs I made.
Rise of the ShadowBinders: The sequel to War Of The Shadows
Anything with myself, Jamarie and Chaoticjaf in it
Those are the only ones that come to mind at the moment, but I'm sure there are others.