Croc Armor is as effective as leather but is harder to obtain.
Croc vs LeatherEdit
If you live in a swamp biome and have no leather-dropping creatures croc armor is for you. But if you have leather dropping creatures or you dont live in a swamp biome use leather.
Obtaining Croc ArmorEdit
Make sure that crocodile spawning is ON. Then find a swamp. Next find and kill some crocodiles. WARNING crocodiles do bite.Finally Use the croc skin to craft armor.