Hearthpwn

C'Thun because he fits my playstyle best. Second is actually Y'Shaarj for me. N'Zoth's effect just isn't really fresh enough. Yogg'Saron is just complete garbage. I'm not saying it's bad and won't be played yet, but I hate these random effects where no matter what happens, one of the players is going to feel cheated. In this case, maybe even both!

Quote from FrostyFeetEU >>

100+ votes and not a single one for Y'Shaarj. Poor guy, he doesn't have any friends.

If we're going by pre-Hearthstone opinions, Yogg-Saron by a significant margin. I flippin' love Ulduar so much. (I'm honestly a bit sad that this expansion means we'll probably not see an Ulduar adventure). But in terms of the cards themselves, definitely C'thun. I almost always play slow control decks that go to fatigue, so C'thun decks absolutely suit my style. I think Yogg and N'Zoth both will be really fun to play, but if any of the Old Gods ends up being a mainstay for my deckbuilding, I expect it to be C'thun.

i like for all of them because you have to make a deck semi completely  around them and all the effects could be very powerfull if used correctly  but are straight out shit if you put them in any old random deck

C'Thun is my favorite, I love his aesthetic and "cultists" theme.

Dr. BOom

Yogg-Saron, Hope's End, because he is the only card that can save any game (It can waste it either, but you don't plan to use him if you're winning). 

I suppose N'zoth as he is the most reliable.

N'zoth the corruptor is the more solid. C'Thun can create some crazy new decks. Yogg-Saron, Hope's End is crazy fun and can change the result of a game by itself.

Y'Shaarj, Rage Unbound is meh, could be good in certain decks, but is boring. And i could see a deck featuring the other 3 gods, but Y'Shaarj breaks the entire game plan with his effect.

Yogg looks awesome 

1. C' Thun (standard)

2. N'Zoth (wild)

3. Y'Shaarj (arena)

4. Yogg-Saron (trolling/tavern brawl)

Quote from Charlylp88 >>

Y'Shaarj, Rage Unbound is meh, could be good is certain decks, but is boring. And i could see a deck featuring the other 3 gods, but Y'Shaarj breaks the entire game plan with his effect.

Yoggy all the way

Yogg-Saron... I need that card!!!!!!!

Cthun is the best and will have the most impact on the meta

I was on board with Y'shaarj because it's the most stable, but then Yogg'Saron appeared, and fuck stability.

Yogg by a long shot, anybody who says otherwise has no heart

1. N'Zoth: Fits effortlessly into a few of my decks already. Insane battlecry.

2. Yogg-Saron: Looks to be the most fun, and I'm most anxious to play him of all the Old Gods, but he could cost you games...

3. Y'Shaarj: At worst he's a 10/10. I like the effect. Sucks that he doesn't trigger into play effects. Can work in N'Zoth's deck, though (just get N'Zoth into your hand/play first...).

4. C'thun: Potentially insane but I'm not a fan of needing to play his minions to get there (they're pretty bland otherwise). No answer for his battlecry, though, which alone could win you the game.

Yogg-Saron, RNGsus Himself