i find shaco really hard to play LOL. They say he is OP, but only on the right hands!
Fivah probably ww and xin zhao are the best to start jungling.
ww is so easy that you can go boots with just 39 armor.
Xin zhao allows you to do lots of ganks and easy ganks. Althought he is UP, he is fun to play and easy to jungle.
Also i suggest getting a 50 armor page and jungling with boots as first item. the 50 armor is because on soloqueue people dont hit the blue golem that much so you will need a bit more armor. With better leashes you could start boots and less armor. But starting boots is really good and for me a must! ( only on wukong i start doran sword but i have a special build for wukong jungle).
It's Mr.AkumaBeast for you! oh and...
Check my inventory if you wish to buy flames.
Don't nunu jungle. Never. He's terrible in the jungle.
With the new-ish jungle his clear times are terrible and has to get level 3 Q or he'll die to camps. Warwick is also a sub par jungler. He has to sit in the jungle tell 7 minutes and can do nothing until 6. IMO don't play either of them as a jungler.