Apparently Beavis is not smarter than Butthead at all.

Dude, they can't even read. How dumb can you be?

huh heh huh heh

Theyre both pretty stupid,but sometimes butthead makes more sence.

Both are stupid as hell.

there both retarded

Uh......this question sucks. Huh huh huh.

They're both idiots lol.

they are both pretty stupid but I think Butthead is alot smarter than Beavis lol

They both stupid but beavis some how makes sence to me idk how

they both probably at 32 IQ UH HUH HUH

Definitely Butthead. Although they're both idiots.

Butthead hands down (even though he is ugly!)

Even though Beavis and Butt-Head are both total idiots and morons, compared to Beavis and between those two Butt-Head is a little more smarter than him

Butthead is smarter than Beavis, if you notice Buttheads always telling him how it is with everything, he controls him in all their ideas and forces him to do things, which is a depiction of a mastermind, he always intelligentally corrects him and tells him he's stupid, sucks, or calls him a dumasse when he plays jokes or pranks him, Butthead is smarter than Beavis, but Beavis is far more smarter than Butthead about things that suck, become bummers, ironic things, and are plain goddamn bullshit.