Do men secretly judge other men's looks?

I think it’s a good thing when another man is comfortable to admit whether another man is good-looking and not feel like he’s gay for saying that. But there are plenty of men that I do know that say they don’t judge other men’s looks so they do not know whether he is good-looking or not or say “What? I’m not gay!”

I feel like that they are lying in a way. I mean, put it this way. if your girlfriend was talking to some handsome buff guy vs. a skinny nerdy looking greasy guy…I’m sure the boyfriend would know who to be more intimidated by as far as looks right?