Actually, Miracle Rogue has come back over the past few days, probably because of all the hunter. I also haven't seen as much Doomhammer as there was a couple weeks ago, in exchange there are a lot of Bloodlust Shamans, which is actually pretty strong.
And I underrated Loatheb, it really is a great card that should be in most decks. Although there are people that are taking it a bit too far, like Loatheb in zoo or other stuff where it doesn't have any place. Undertaker is also crazy good (in zoo), it either forces an immediate response from them or it becomes a yeti within a few turns. Mad Scientist has been manageable for me, mostly because it can pull out the Explosive or Freezing Trap at a bad time for them, and thus not get too much value, although it is still a great card. I'm more pissed off when I play Secret Mage, because they can just run like 8 secrets (Vaporize, Mirror Entity, Counterspell, Duplicate) and it's annoying as hell to figure them out.
I really like Deathlord in zoo, of course, it can backfire, but the card is a huge pile of stats, and it's the ultimate mirror tech. It pulls out Doomguard an improbably large amount of the time, stuff like turn 4 Rag is gg (this was with my Priest when I had no Shadow Word Death), but it's better than Blood Knight, especially since Divine Zoo is mostly dead.
Shockadin seems mostly dead, maybe because of Kolento, but Control Paladin is the norm. Mage is in an interesting place where the main deck pre-Naxx (freeze mage) is basically nonexistent, so what you see is a mix of secrets, face mage, midrange-y without any theme except good value cards, and other stuff. Control Warrior is reasonably popular, which I'm happy with because it's a fun match up with any class.
Druid is almost exclusively token, I've found, although I've still played some slow ramp decks. And Priest is a pretty viable and popular deck now, most run Deathlord, which makes me happy for my two Shadow Word Pain, and it has a decent time. The Priest mirror is really swingy, with a lot of changes of board control. It usually comes down to who paces their Northshire right, drawing enough to get a strong midgame but not too much that you fatigue and die.
In general the meta's slowed down a lot, it used to be that I only went to fatigue in Priest mirrors, really unusual games and the odd Control Warrior, but I went to fatigue with my midrange Mage against a Druid, a Handlock fatigued against me, and it's really absurd how quickly Hunters can go through their decks. There's been plenty of situations where I have 15 cards left in the deck and they have 4 or 5.
That was a lot longer than I thought it would be, but I've been playing a lot so I wanted to share my meta experience.