Always done what I could for the boat, then found a safe haven ashore to ride things out. Sometimes just getting ashore was dicey! Last boat I lost was in Gloria ('85) - also hit by another boat. Oh yeah, I keep my insurance paid up..
Not sure whether I'd pick drowning or heart attack as a way to go. With drowning, you'd have that period of pre-drowning where your mind would be doing all sorts of crazy things. With a heart attack, at least an MI, it just happens - no maybe about it.