My take: Mum-Ra is so damn powerful that he just messes with the Thundercats for fun. Sure he loses, but he laughs the whole time because he is "everliving" and he just needs some distraction to fight off boredom. On the other hand Skeletor just gets his ass handed to him over and over again by He-Man and friends. I always saw Skeletor as a joke, while Mum-Ra was a badass.
So, yeah, Mum-Ra would win, unless he didn't care....
curl-6 bet me that PS5 + X|S sales would reach 56m before year end 2023 and he was right.
My Bet With curl-6
My Threads:
Master Thread, Game of the Year/Decade
Switch Will Be #1 All Time
Zelda Will Outsell Mario (Achieved)
How Much Will MH Rise sell?
My Bet With Metallox