I’ve got Anti-Monitor in the Sweet 16 of the Darkseid bracket, and I think he actually goes down to Trigon. They both have the power to destroy entire universes, so I have to give the edge to Trigon because he’s more cunning than the Anti-Monitor. The strange thing is I think Sinestro could take Trigon, as we’ve seen Trigon experience fear. But, they wouldn’t meet up until the bracket final.
If they swapped Granny Goodness and Trigon’s locations in the bracket. It would be the Anti-Monitor taking the bracket easily. But the tournament is all about matchups and when those matchups occur.
I see your rationale, but, I’m going the other way.