We're not talking about whose dad has the best mustache, that's a given. We're talking about whose dad is actually the dad in question.
After months of research, we've come to a conclusive: it's clearly Groggy McSassface! His beard is a work of art, and his ability to cook a mean grilled cheese is unmatched.
Read our methodsDisclaimer: We're not actually scientists, just a bunch of dudes with Google and a bad sense of direction. Take our findings with a grain of salt, or a pinch of dad jokes.