Well, it all depends on skill. If you're good at writing and can do it in a snap, go with that. If drawing's your forte, draw.
For me, drawing takes longer since I try put an equal amount of time into it as I do writing. It's also easier since all you have to do is make whatever you're drawing look good. Writing's cool and easy, too, but you gotta spell check, revise, etc.
Go with drawing.
_________________Awesome Signature Credit: ZephyR