I'm pretty good at swimming. Absolutely useless at flying.

A boat wreck usually doesn't involve any massive amount of falling. Plane wrecks can happen over all of Earth, which means there's a pretty good chance that the flaming, disintegrating plane wreck will only turn into a boat wreck situation once it hits the water nearing a thousand miles an hour. If not, then you hit the ground. You lose either way.

Usually, not all the time, but usually, boat wrecks are slower and more manageable situations, and a greater people come out of boat wrecks alive that those that escape from aircraft wrecks.

I don't know what the ration of plane crashed are to boat wrecks but I'd take my chances in the boat wreck rather than a plane crash. I'd think you'd have a better chance of survival unless you were traveling at some inordinate amount of speed and hit another boat head on or other injurious way.

Well, first off, if I'm ever in a boat wreck I'd be pretty pissed off because I hate going on boats to begin with. And imagine that someone talks me into going on a cruise and it hits.. a rock type iceberg (haha) and just, fkn, wonderful. However, I pick boat because there's probably a better chance of surviving and there's less falling. But there better be something for me to float on because I sure as hell don't want to drown. And if a shark even dares to eff with me, I'll punch his eyes out.

You'll have a better chance of survival from a boat wreck.