The stuff I think is playable
Hungry Dragon - maybe. That's a pretty big damn body for 4 mana, and I can't think of many 1 drops where it would backfire on you.
Chromaggus - I honestly think Chromaggus is slightly better than Kel'thuzad, and Kel'thuzad is already borderline playable. Would be more playable if the format slows down for a month or two like it normally does when new cards enter the pool.
Emperor Thaurissan - As people have said, the 6 slot is very competitive, but I honestly think Thaurissan is objectively stronger than Sylvanas, whom I consider to be the current objectively strongest 6 drop. That is some potentially insane mana cheating that he provides, so pretty much everyone will be finding room for him.
Quick Shot - I think Kolento is way overrating this one. This certainly won't be run by all hunter decks. I definitely wouldn't run this in mid-range hunter, and if I was running this in face hunter I would probably pull the kill commands and most of the beasts.
Dragon Consort - This is an objectively powerful card, but I don't think there are enough other good dragon cards to put control paladin back on the map, and this doesn't fit midrange paladin. I think this is a card that will become very strong somewhere down the road when the card pool gets bigger.
Resurrect - Maybe, but probably not. Would really suck to get a Northshire back. If you're going to gamble, gamble with Thoughtsteal.
Fireguard Destroyer - Very solid creature that helps plug a hole in the midrange creature slot for Shaman.
Upon review, I agree that the set seems a bit weaker than Naxx, but not dramatically so. At least they took care not to make a bunch more out of control aggro cards, but unfortunately they didn't really print anything to keep aggro under control either. I predict after a couple months of people dicking around with the new stuff, the meta will be right back to heavy aggro.