Honestly, we know that Mao could at least swim, even if he was a big boy. We don't know the physical status of Kropotkin, but he was a prince so maybe he did lots of sports? Lenin was thinner but he was a book worm... then again, that Patrick Stewart film made me think he went out on the lake a lot as well as rode his bike around. So really, it's a tossup.
Honestly, we know that Mao could at least swim, even if he was a big boy. We don't know the physical status of Kropotkin, but he was a prince so maybe he did lots of sports? Lenin was thinner but he was a book worm... then again, that Patrick Stewart film made me think he went out on the lake a lot as well as rode his bike around. So really, it's a tossup.
Oh snap, I've commented before reading the other comments again.