Personally, I know that WW is the most OP thing in the jungle atm.
However, I have other champions that I prefer to play, and they can still survive pretty well, and with a lot of damage. and I think they give more team fight capability in some cases.
My favorite jungler atm is
after him would be
, and dont forget that
is op as hell, survives easily because of his passive, and can solo dragon at lvl 2 with att speed runes.
Another good choice is
because of her passive shield, surviving jungle is fairly easy with some att speed and life steal.
of course has built in insane healing so he's a top pick right now too.
he does % dmg so buffs are easy to do at the start.
get some hp/armor runes, and mundo can clear jungle really easily because his Q does % of hp damage. and after clearing buffs and camps, his build in health regen keeps you ready to gank.
has the third best sustain in the jungle atm because of his chomp. get chomp to start, then I usually max his E for the nice slow on ganks.
Hope this helps! :)