So... What are thoughts now that Naxx has been out for awhile?
I'm sure things haven't settled down just yet as people are still experimenting with cards and such, but I think it's safe to see where trends are going. Hunter looks to be dominant again. The good news is that they do have strong counters (Priest does surprisingly well against them and Miracle Rogue is very tough for them to beat). In addition Hunters also form a pretty solid counter to the other dominant deck (i.e. Zoo). The bad news is that it seems Hunters are back to being a bit too dominant again. People are pointing to Hearthstats with good reason. Right now Hunters are well above a 50% win rate in Constructed with a very large % of matches having Hunter on one side. Of the 9 classes, Warlocks and Hunters seem to make up around 50% of the classes played right now.
I remember back before Unleash The Hounds was nerfed to 3 mana saying something along the lines of every single deck had to take a Hunter with UTH into account. The same thing happened after the nerf when Zoo decks went through the roof in use. We're now back to that point where every deck has to be ready to handle both Hunters and Zoo. Doing that is not as simple as it sounds either. In both cases, to counter a Hunter or Warlock, you need to play pretty defensively since it's nearly impossible to race either deck. In other words, you have to go Control. The biggest problem with Control is that it is so easy to lose a game by turn 3 or 4 simply because you didn't get the cards absolutely necessary to counter the deck your against or by simply falling behind.
At any rate, I'm not sure if Hunter needs to be nerfed or not right now but I can't believe that Blizzard feels the current Meta is healthy.