Michael could take Johnny any day...
One thing I don't get is why Michael didn't stand up to Johnny. He wasn't a nerd, he was just smart. He's British and most British lads in the 60s kept fit by boxing so I reckon he could handle himself in a brawl. He was also much bigger than Johnny, who in truth was a coward. Goose would be an equal match but Johnny would back down when the sleeves we rolled up.
Johnny only acted tough when the other T-Birds were with him and when Balmudo showed up he lost his bottle.
Michael could've easily battered him if it were a one-on-one.