Let's see...

While I do like swords, they don't suit Vincent.

I would like to play with Barrett though, that'd be hilarious. Vincent is fine by me though.

More into the story, as said.

None of this "gothic" music, I want great classical/operatic music. Orchestral music that sets the mood and is both passionate and exciting when needed, as well as calm and deliberate when such is called for. Hell they could even steal from Mozart's Requiem by playing the Dies Irae like they did in X-Men 2. I'd still be happy.