Comic spoiler, Mark related.

In the final battle between Thragg and Mark near the core of the sun, Mark manages to defeat Thragg but almost dies in the process before being rescued by Allen. I can't find a definitive answer, as some people say they're equals in strength, while others say one is stronger than the other. My question is: by that point in the story, are they equal in strength, or did Mark just get lucky, as it seemed the sun played a big role in weakening Thragg? Also, would Mark have won if the sun wasn't involved?