This is slightly off-topic, but Yahoo! Answers has an entire thread on whether a hippo would beat a crocodile in a fight.
The answers, of course, favor the hippo. My favorite:
yeah, hippos are underestimated in our culture. they are shown as stupid animals but in reality are magnificent creatures. they are docile but when disturbed are dangerous. They can run faster on land than a human and have large canines. hippos are very hostile towards crocodiles and crocodiles are unable to snap their mouth constantly. they are ambush attackers and rely solely on their first attack, their necks are not designed for long battles.