I see a lot of people talking about how pretty much every character is beyond Super Buuhan level by this point, but I can't for the life of me see how or why. Let me start from the beginning.
At the start of Super, we've got Goku back on top, he's probably about the same strength as he was in the Buu saga. Gohan's lost his position, because he stopped training and became drastically, pathetically weaker. Which sucks. Buu is either just as strong as Goku or very close, maybe just under SSJ3 level. Super Buu should still be much, much stronger than Goku right now. Vegeta is weaker than Buu, being capable of a strong SSJ2 form. Behind Vegeta would be Piccolo who, by this point, might be as strong as Gohan when he first went SSJ2, but could be even weaker than that. Beerus comes and fucks everybody up, Goku gets God form which puts him clearly stronger than everyone by a large margin and afterwards Goku and Vegeta go off to train with Whis.
Next up, Freeza comes back. Freeza's gotten stronger, but Gohan has gotten so weak that he can only turn SSJ1 and his SSJ form is hilariously outclassed by Freeza's first form which has less than 0.05% of Freeza's final form power. Somehow, at this point, Piccolo is even weaker than Gohan.
Goku and Vegeta come back and their base forms are comparable to Freeza's final form which is like 250 times stronger than Gohan's SSJ form, so... yeah. They definitely got a lot stronger. How much? Hard to tell. Gohan and Piccolo becoming so weak at this point throws off any viable scaling benchmarks, so... it all depends on where you scale Final Form Freeza, and that's honestly anyone's guess. If we scale from the lowest level of Super Saiyan we've got and go from there, then first form Freeza is stronger than 150 million, by a lot. Actually, how he trashes Gohan looks kinda like how Android 18 trashed Vegeta back in the day, so let's say that first form Freeza is 18 level (why Buu and Android 18 aren't there to face Freeza is probably because of how they would have messed up the narrative). That means his final form is roughly 225 times stronger than her, so over 1,000 times as strong as early SSJ Vegeta, for example. Pretty damn strong really. If we assume power levels didn't inflate too crazily after the Cell games, Vegeta's SSJ power level by the time Buu rolled around might have been something like 750 million and his SSJ2 power by the end of Buu/beginning Super around 2 billion. If we put Android 18 at roughly 275 million, then final form Freeza is sitting on a power level of something like 60 billion, which, even being generous and giving SSJ2 Goku a PL of 2.5 billion, means his SSJ3 was only 10 billion, which means final form Freeza is at least 6 times stronger than Goku's most powerful form at the start of Super and that also means that Goku and Vegeta's base forms
are now roughly 6 to 8 times stronger than Goku's SSJ3 was at the start of Super! Holy shit!
But then where does Buu and everyone else fit into this after Resurrection of F? Well, Buu should still be about as strong as a SSJ3, right? So he's got a power level close to 8 billion. Piccolo should
still be as strong as a SSJ2 which would put him at something like 2 billion on the high end, but he was shown to be weaker than SSJ Gohan and that Gohan is a very weak SSJ, so I have no idea. It looked like Gohan would be at, maybe 100 million? With Piccolo trailing behind at 75 million, maybe? I guess, they could have been as strong as 200 and 150 million respectively. Android 18 would still be sitting at maybe 300 million, probably less. She could've handled first form Freeza, probably. Buu could have taken him up to third form, but would lose to anything more than 13% of final form Freeza's power. Android 17? Well, when he does show up, he's strong enough to handle new and improved post-RoF SSJ Goku, even knock the crap out of him. Just by itself, that's insane
. SSJ Goku has a power level of 3 trillion or more. This would definitely put Android 17 above Super Buuhan level. Ultimate Gohan probably never reached a power level higher than 64 billion and that's being generous. Super Vegetto would have had a power level of something like 500 billion if we're really hi-balling it, so maaaaybe a trillion if he went SSJ2. Android 17 is basically as strong as a hypothetical Buu saga SSJ3 Vegetto. Dear god.
where is Gohan on the power scale at this point? Where is Piccolo? Gohan is post-RoF SSJ2 Goku level which puts him up to 6 trillion or more? Gohan's gotten 100 times stronger than he was when he fought Buu? Is Piccolo any stronger, though, than he was when he fought Frost? Goku was probably going to beat Frost in base form had Frost not poisoned him. So Frost is weaker than 60 billion. But Piccolo probably would have beat him too if he hadn't been poisoned, it took everything he had, and Frost was underestimating him, but I think it's safe to say, no way is Piccolo sitting at cell games SSJ power level anymore. But is he stronger than Buu? If Buu really is still less than 10 billion, then, actually, I'd say, yeah. Piccolo seems like he's got to be at least 30 billion by now. Wow. It actually is possible that Piccolo is stronger than Super Buu or even Buuhan at this point. Which sounds so insane, but comparatively that would make Android 17 like 100 times stronger than him. Gohan stronger still. Vegeta so far above him it's almost sad (1,000 times stronger or more as SSG, who knows how much stronger as SSB).