If you were to form a band what kind of music would you play?

I'm looking to start a gothic/symphonic metal band with my friend. I play guitar and she's an excellent vocalist and plays the piano just as well. I'm not sure how to ask her without her thinking I'm weird. She listens to Evanescence, Flyleaf, Nightwish and other stuff like that
Update: I also would form a Viking/Folk Metal band
Update 2: Hah Scream Brutal Death metal.. you must think I'm soft then lol
Update 3: Thanks Ana
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