I am a huge fan of WW. The trick is to be upfront with your team. Either have some of them use exhaust or you just arent ganking until 6 and just rush 6 as quick as you can with your team not over extending themselves. If they want ganks before 6 make sure that they do their part and get them to at least 50% health or there is no way you will catch up to them to land anything.

You haven't jungled until you've jungled Twitch, straight up.

I became a new man after jungling with Jarvan. He's got level 2 kill potential, fairly good clear speed thanks to going over walls, and he's inherently tanky. He's got a great team fight presence with his combo initiation and passive. I'm working on mastering his ult, but I have his E/Q/W down after about 30 games played.