Maokai.
AP quints and blues, armor yellows, Mpen Reds. Start wraiths (put down saplings at 1:06), put down as many as you can before they spawn.
0/21/9 masteries.
Start regrowth + 1 HP, make Philo and boots on first b, if you ganked after going wraiths -> blue -> Wolves -> Wraiths -> Red -> Gank
Go E -> Q -> E -> W so you can kill red easier, gank at lvl 4 once you get W, or get W at lvl 3 and gank if their mid or top is just asking for it.
Maokai is a godlike jungler, excellent utility, beefy, fast clear time, is an AP jungler, does massive damage and has good sustain.
Build Philo -> boots -> Heart of Gold -> Merc treads or Catalyst -> Catalyst or Merc Treads -> finish catalyst into RoA -> Frozen Heart -> make Philo into Shurelya's -> make HoG into either Randuin's or that other thing that gives a shield effect to your team. All situational. Could also sell it and make an MR item, again, situational.
I also like to Jungle as Trundle.