Originally posted by SSJGGogeta
You're taking all of these feats/statements out of context.1. Vegeta was scared about Kid Buu returning because Kid Buu could appear while everyone was gone or something, and he would blow up Earth without a second's hesitation. And he could teleport to Namek and blow it up. Then they'd be phucked. But Goku wasn't worried, because he's so used to relying on the Dragon Balls. Even when it was just Frieza coming back, we saw how scary that was. Not because of how dangerous he is, but because of the POTENTIAL danger he represents. And Kid Buu is thousands of times stronger and more dangerous than Frieza.
There's nothing to indicate that this was the reason Vegeta was scared and plenty to indicate that it wasn't. By that logic, Goku's solution (train hard so they'll all be ready) is meaningless as Fat Buu can get angry any time, bring Kid Buu back and destroy the planet without a moment notice regardless of whether everyone trains. By saying they need to train, he's acknowledging that none of them are strong enough to deal with Kid Buu outright at that time.
2. Uub was not as powerful as Kid Buu. He was his reincarnation, that's all. Just because Naruto was Asura's reincarnation, doesn't make him as strong as Asura. That makes no sense. And Kid Buu was billions of years old. Uub had only been around for like 10 at the most. Who knows how strong Uub was, but Goku was in no way, shape or form taking it seriously against Uub. And that implies that his base form couldn't defeat his DBZ SSJ3 form. Even now in Super, base Goku would murderstomp his SSJ3 DBZ incarnation. So those "showings" are in no way definite.
Uub was not as powerful as Kid Buu as a result of not knowing how to use ki or any of his other powers (which is what Goku notes during the fight and why he goes to train him), but you're missing the point. Goku came into the fight with the impression that he was going to fight the equivalent to Kid Buu. With that mindset, he tells Hercule that he might not make it to the final round in order to "let Hercule win." He tells Vegeta that this unknown fighter is actually going to be a challenge despite being an earthling.
All of this is said despite Goku having trained the last 10 years, thus dispelling any notion that Goku could have won 10 years ago. That's what the Super Buu > Kid Buu arguments are premised upon. That Goku acknowledge being weaker than Super Buu, but thought he could beat Kid Buu, therefore making Super Buu stronger. Only Goku changes his mind about Kid Buu, realizing that he had greatly underestimated him.
3. Take EVERY OTHER SHOWING FROM THE ARC INTO ACCOUNT, and it's clear that Super Buu is MUCH stronger than Kid Buu. And I'm talking base Super Buu. The first showing that proves this is Super Gotenks vs Super Buu. Post ROSAT Super Gotenks was roughly equal to SSJ3 Goku, if not even more powerful than him. Gotenks only became able to fight on par with Super Buu after going SSJ3. Meaning that Super Buu was AT LEAST 8 times stronger than SSJ3 Goku, because SSJ2 is a 2X boost to SSJ1 and SSJ3 is a 4X boost to SSJ2. Making SSJ3 an 8X boost to SSJ1. And Goku got no noticeable zenkai boosts during the entire Buu saga, because he was dead for the majority of it. Then, Buuhan would have been around 3X stronger than Super Buu, making him anywhere from 16-24X stronger than SSJ3 Goku.
We are taking every showing and statement in the arc into account. Everything you said is well and good (numbers aside), except the entire idea of Kid Buu being weaker clinches on Goku thinking he can win against Kid Buu. Then, for one reason or another, you seem to disregard every observation, showing and statement provided after the beginning of the fight. It's like concluding that Cell is weaker than Cell Saga Vegeta because Android 16 said that his sensors indicated that Vegeta was stronger. Obviously, the remainder of the arc proves otherwise. So too is the case with Kid Buu. Mid-fight, you've got Goku realizing that Kid Buu is dragging the fight out on purpose and is simply having fun (which ends up going as far as Kid Buu even toying with Hercule).
Also, lets refrain from using any numbers (i.e. SSJ3 = 8x boost to SSJ1). Not only are they not relevant, but it's just guesswork. Power levels and base multipliers stopped have any significance a long long time ago.
This is supported throughout the entire arc. Not only did Vegeta say that Kid Buu was EXPLICITLY weaker than Super Buu, but Goku was confident enough to fight Kid Buu, whereas he was so desperate against Buuhan that he even considered fusing with Hercule or Dende. And Vegeta and Goku even stated that they wouldn't be able to beat base Super Buu even if they fought him together, which is why Vegeta ripped out fat Buu as well.
Except I have my copy of the Viz translation with me at hand. Where in the last manga volume does Vegeta "explicitly" say that Kid Buu was weaker than Super Buu? Goku and Vegeta comment on how puny he is. Vegeta also removed the fat buu from Super Buu with the impression that it would make him weaker. This is then contradicted as both Goku and Vegeta observe that Buu's ki actually rises as a result of removing Fat Buu.
4. Yeah, Kid Buu pushed back a universal spirit bomb. But that was only because Goku was so weakened that he couldn't control it. As soon as his ki was restored, he was able to overwhelm Buu's control of it just as a SSJ1. Are you saying that SSJ1 Goku was stronger than kid Buu, with his ki restored? Because that's the only way that makes sense, going by your logic.
Goku controlled the spirit bomb just fine against a 50% Frieza and he explicitly said he was out of ki then. In this case, Kid Buu was simply so strong that he needed his ki in order to finish the job.
The amount of ki, in the spirit bomb, however, is very relevant. After receiving ki from Gohan, Piccolo, Goten, Trunks and variety of other characters, it's explicitly noted that this ki isn't enough, hence why they end up needing Hercule to beg the entire planet for their ki. If we are to follow your logic, that amount of ki ought to have been sufficient (since it included Mystic Gohan's), Goku could have thrown it then and we could've cut straight to the scenes with the dragon restoring his ki back to normal levels.