I don't get sea sick or anything, but I'd prefer to fly on a plane just because it's faster, more convenient and cheaper I guess. I've travelled on boats before (e.g. to England - it took around 18 hours one way) and it was totally fine, but it just seems to me that if you have to travel by boat you'd have to make more out of it, y'know like a trip or an experience rather than just seeing the boat as a way of transporting yourself from one place to another.