Help me evaluate two 4th job classes

Both are great classes imo, so whichever one you pick, you'll be very happy with as long as your focus isn't being the very best at anything. Like shadowers, marksmen use a lot of different skills during training so it's a pro for both (or a con in the case of some people xD). I'd never want to quit my marksman, but I might make a shadower on the side just for fun/melee. It's really hard to chose between a shadower and a buc for me.