User blog comment:Bharatram1/Who is stronger ? Lilith or Azazel ?/@comment-5619706-20121124184611/@comment-5619706-20121125010601

Fair point that Yellow-eyes are unique, but so are Samhain's.

To which, we never had any canon proof archangels could really kill leviathans as we do not have any canonical match ups between the two species. Yes, I agree with you the Old Man is older but let us not forget Benny had experience from Purgatory for a lot of years. Before, Benny was obviously overpowered by his maker. Dean was a special case since he was a hunter before he was turned, hence him overpowering his maker.