I like them both. I'm much better at drawing by hand and I've been doing it longer, so it should take precedence over computer art... but I do like to draw on the computer, too. ^_^; I've got a tablet, so it's not that much harder. Plus, I LOVE the undo button. =X If I make a little mistake, instead of erasing and possibly leaving pencil marks, I just hit undo and I can do it over again. ^^;;
So.. I have no preference at all. ^_^;