Shark because Crocs are opportunistic feeders they'll eat whenever, cause they don't know when they'll eat again. Idk if this is true for shark. Besides a shark has less chance if I'm on land.
Would you rather be trapped in a pac man game for a year and your pac man or be attacked with an animal with rabies (I heard rabies shots are done in your stomach by a really long needle. I bet it hurts a lot)