>Guillotines are more entertaining
Use piano wire on the gallows. It'd be sort of a hybrid with a gallows start and satisfying guillotine finish.
Hell yeah! Death row could be cells arranged around the gator pit with a full wall of bars on the pit side so they could watch their fellow satanic comrades be eaten for a week or two before it was their turn.
This anon has always been partial to dull wood chippers on a 'painfully' slow feed with results being blown into GITMO Bay to feed sharks but that would be cruel and likely toxic to the sharks.