I prefer a woman who doesn't hold back. When she competes, she competes. When she fights it's for real. I want a woman who challenges me. If I wanted a doormat I would have bought a doormat.
My wife is not afraid to tell me what she thinks, we are not afraid to argue, and when it is time to compete we hold nothing back (well almost nothing, I don't want to actually kill her).
I guess I like it rough.