No offense, but by that logic Spidey beating down Firelord is a very good showing. Got to draw the line somewhere, or "Spiderman vs Firelord" standards have no meaning.
And Ronan's as likely as not to beat Firelord, considering track record of holding his own with high ends like Surfer and Thor, and beating Ravenous so bad he had part of his face replaced with tech.