Re bizjet successsful ditching.
FAA lost a flight check Sabreliner a number of years ago from Acension to Brazil when he ran out of gas. Ditched into the Atlantic near the coast (apparantly found the country but not the airport). Crew of three got out, one died of injuries in the raft, a/c sank like a stone.
Trashhauler has it right, ditching is a last resort and a crapshoot with the odds very in the house's favor.