Udyr Advice?

Fun guy, Just wondering if he's any good competitive wise though. I've tried various different builds and people say he scales better late-game then other junglers, but even at full build It didn't seem like it :/
Any Udyr Mains have advice on proper build or something?
, or as a tank if you go with a full tank build instead. His biggest problem in my experience on the champion (and why I don't like him) is that he is easily kitable since he has no real means of sticking to people or even more importantly engaging teamfights.