This video is stupid. First and foremost, it doesn't quite clearly show it's a croc. At first I thought it was an alligator due to the broadness of the snout, saltwater croc's have a much narrow snout.
Secondly, these are two animals who dominate either spectrums of wildlife, of course the tiger will win on land. As agile as a croc can be on land (especially on mud) it just won't stand up to the agility of the world's biggest cat. If the tiger was going in for a drink by a bank, it'd be dead as soon as the croc saw it 15m away.
As for the hippo, croc and tiger debate - the clear answer is a hippo. Even croc's steer from hippo's, and then you see people try and swim with them :lol