I think it's a worse question in the comics, because there Zod and friends have had a lot of time to adapt to the Sun powers and considering they are militarily trained they would be able to defeat him very easily, let alone the fact that they're from a very advanced planet and they're 3 vs 1.
Originally Posted by Man of Steel
I think Superman was a lot more powerful than the other Kryptonians. Remember when he was fighting both Faora and Nam-Ek at the same time, and apparently to a draw?
I thought that Faora and Nam-Ek were using enhanced suits and only Zod started gaining powers since he was the one who came into direct contact with the sun and atmosphere