Who do you think has more power over the very soil of azeroth?

[NoobATK92]

So the fight stands between the big ugly moving rock.... with breast -----> Therazane the stonemother
And the awesome lava forged black drake, the very death under shadow wings -------> Deathwing the destroyer, former Neltharion the earth warder

[Sunseeker]

Generally, even when two characters have incredible power, and the "good" one is usually stronger, the bad one has a much more demonstratable effect because of their greater willingness to use their power.

So Deathwing.