So why is superboy-prime so, well, super?
So I just finished reading the Sinestro Corps War arc, which I enjoyed greatly. But one element kinda bugged me, and I was hoping those more knowledgeable in DC lore could fill me in.
The fights get kinda chaotic, and there's a lot of jumping around, but as far as I can tell Superboy-prime was able to beat his way through most of the heavy hitters from the justice league, take out a lot of GLs, mostly beat down the new Ion, toss around the anti-monitor, and manage to go toe to toe with the guardians until he finally gets defeated. That seemed to me like quite a lot. Now granted it he's a kryptonian, but I would think even superman would have a hard time going through all that in one go.
Of course, saying that I fully admit my superman lore is rather spotty. I mostly only read about him in the JLA and even that I don't follow regularly. And I get that prime is immune to kryptonite, which of course is one of the big edges (the wiki article also said that he's less vulnerable to magic than the earth-1 superman too, which I guess makes two edges). Still, he managed to go up against superman and supergirl, also kryptonians, and seemed to do fine.
So am I missing something here? Was the universe prime was from just more powerful overall or something? Does he have some other edge (well, aside from everyone being preoccupied by the 15 bazillion yellow lanterns blowing everything to hell)? Or was it just an oddity of this run that he was so powered up?