Magical Sailor Fuku

So... I'm considering a story where some poor schmuck would like to be a hero, but, of course, he becomes a heroine. It's more complicated than that, but I'm summing it up as simple as that for the purpose of this poll. Powers and abilities aside, what should their appearance be when they are transformed? (Yes, you can assume that it's like a magical girl transformation, in that he takes this form when he wants to.)

Help a poor, indecisive person out. Suggestions very welcome.

(I thought that giving up to three choices would help, if more than one was of interest. Or if some combination seemed more ideal.)

My ideal hero/ine would look like a normal human girl most of the time, though incredibly cute (that could also be a sort of obstacle for the protagonist, having to deal with flirty boys), but when "powered-up", be something like an angel.

'Cuz angels are awesome.

I'd say demon. There's alot you could do with that too. Like you could have it be cute and then really strong like Haylie suggested. Conversely, you could do a misunderstood hero type of thing where people persecute him for her appearance. Or maybe both. Either way, demon all the way.

A demon has interesting possibilities. Too bad I'm not getting much of a response, though.

I myself prefer the uber-cute/sexy girl. I really wanna see this though.

As Dracos and Haylie have said though, an Angel or a Demon both present unique possibility.