User blog comment:Roxashasnoheart/Who would win? Alduin or Mehrunes Dagon?/@comment-4583656-20111107233054

Hmmm, well, you gotta consider that Alduin has the service of dragons, even if Dagon had a deadra army, it would not be enough. Also, Dagon himself is too slow, Alduin alone could take him down (considering the fact that he is the "dark" side of Akatosh)