Nefarian is incredibly obviously better and it was very clear from the first EU streams.
Hearthstone is a pretty figured out game, which is why we're always damn near 100% accurate about how good a card will or won't be (with very very few exceptions) when shown pre-release. It's not hard to see how and why Nefarian is significantly better.
Which is better and why?
Nefarian is like a face hunter-put a bunch of 7/7 and go face.
I feel like they're pretty balanced. My winrate is roughly equal on both so far.
I bring life and pffffffffffffff!
In the BGH heavy meta, Nefarian. Otherwise, Ragnaros
Nefarian is incredibly obviously better and it was very clear from the first EU streams.
Hearthstone is a pretty figured out game, which is why we're always damn near 100% accurate about how good a card will or won't be (with very very few exceptions) when shown pre-release. It's not hard to see how and why Nefarian is significantly better.
Free spells and mana advantage makes Neferian much better than Ragnaros.
If you're 50/50 with both heroes, you don't know how to play Nefarian.
Ragnaros, he granted my first win.
We already have a thread for comparing the two heroes:
http://www.hearthpwn.com/forums/hearthstone-general/tavern-brawl/47922-nefarian-vs-ragnaros