Control hunter cards are probably the best in the expansion. Even Ram Wrangler isn't terrible just subject to bad RNG. If you look at what the other classes got Hunter probably ranks first. Druids got a couple of decent new removal cards. Mage got some cool stuff. Shaman so-so. Priest, Paladin, Rogue, Warlock, and Warrior got mostly shit.
Let's do a Children's Card Game PhD Breakdown Review:
Hunter - Bear Trap, Lock and Load, King's Elekk, Powershot, and Dreadscale (I'll leave out Ram Wrangler).
Mage - Fallen Hero, Effigy, maybe Rhonin.
Druid - Living Root, Darnassus Aspirant, Mulch, maybe Druid of the Sabre if there's room but probably not.
Shaman - Totem Golem, Tuskarr Totemic, Healing Wave, Mistcaller, maybe Thunder Bluff Valiant and that shadowform weapon thing.
Paladin - Enter the Colosseum, Warhorse trainer (I guess), maybe Tuskarr Jouster.
Priest - Shadowfiend... maybe... then there's shit like Flash Heal and PW: Glory if you want to waste deck spots.
Rogue - Undercity Valiant... maybe. Beneath the Grounds and Anub'arak if control rogue becomes a thing.
Warlock - Wrathguard... and uh... the rest are bad. Fizzlebang if you stuff a couple of inspire mechanic cards into your deck.
Warrior - Varian WIN, ofc. Bash. Maybe Bolster and Sparring Partner.
Looking at it again they really did a shit job with Priests who are in dire need of help.