I think everyone overlooked a very important fact here... it is not would you rather A or B, it is would u rather living or dead? Choice B has gills... dead on an island within minutes. So unless you got necrophilia and all......
Although I suppose I can't disagree with you if you chose B for the fwap fwap noise, even if it only lasts a few minutes.
Besides, it isn't necrophilia if the body is still warm, right? Tropical island = very warm.