i killed a 90 warrior with second wind as 88 hunter, was a challenge and a lot of kiting, but got there in the end. warrior wasnt very good either which helped.
i dont think it really needs a nerf anytime soon, its only really overpowered in a 1v1 fight, which blizzard doesn't balance around.
---------- Post added 2012-10-01 at 11:20 PM ----------
OP was a feral druid though, hunter is a bit easier because you can kite really easy and have a -25% healing debuff.