The highest I've reached was Rank 7 with token Hunter post-Karazhan. Currently I'm stuck at rank 9 with a similar deck. It's not a great time to be a Hunter right now.
Oh man, Hunter was beast (forgive the pun) in Karazhan right before the nerf to Call of the Wild. I even had The Curator in there with one Azure Drake since it curved nicely into 8 mana CotW. Good enough to get to Rank 5, with nice 5 drops all around.
I think Kindly Grandmother pushed CotW over the edge. I didn't think a 1-mana nerf would be so impactful but the card feels so much worse now.
It's sad because Hunter got good cards for its midrange archetype (3/2 Trogg Beastrager card replaces Elek after rotation, Rat Pack is neat). It's just that midrange archetype is in a terrible spot right now. Struggles against both Aggro and Kazakus Reno, with CotW too slow now to help win before the opponent stabilizes or kills you.
Edit: oh yeah I am fortunate enough to have opened Twin Emperors a month of two ago. I think I am only missing the Shield Slams and maybe one Brawl to get a decent C'Thun Warrior going. The Alley Armorsmith seems like a decent sub for Crazed Worshiper.