Dabura's comment about 3000 being lower than his Ki was only in the anime. In the manga we can infer that's the case since Dabura says no one in the world can match him, but that's really it. Also Babidi was not reading Galu's Ki on his meter when Galu started pumping Yakon full of light Ki in...
A lot of people say the Freeza arc is overrated (and with good reason), but what about the Saiyan arc? It had perhaps the best filler in the series along with the driving filler when it came to shit like Gohan's desert episodes, but the Saiyan arc has perhaps the most simplistic plot structure...
It was Galu's non-FP rating imo. SSJ Goten and Trunks still could power up a decent amount before they could reach the full power of their SSJ forms, so when Galu's intent was just to show Yakon he can light up the battlefield he shouldn't be FP yet.
Gohan said he only appears to be on the level that he can't win against him easily while hiding his power (presumably referring to his base full power or SSJ forms). Plus he couldn't even budge the Z Sword while base Gohan could lift it and Goku could swing it with some effort
Also Potara was stated to boast greater effects than regular fusion, and old kai stressed that when he said the Potara base form should be pleeeeeee~nty (his words) because of how uber duber amazing it was. Rivalry boost or not, Potara Gotenks would be far above Super Boo and Ultimate Gohan
I dont think their racial makeup matters much, only their powers and compatibility. Kibito :shin seemed to have bad conpatibility due to Kaioshit and Kibitos powers being too far apart, same with the two Zamasus fusing into the relatively weak Merged Zamasu. Whereas with his fusees being equals...
Do they receive a rivalry boost or not? They seemed pretty eager to outdo the other and have almost the same power levels, but they seem more focused on avenging their families by killing Boo than on outdoing the other by the time they learned Fusion and post-Boo, don't seem to care much about...
In what scenario would they get Potaras though? Nobody knew what the Potaras did until the last 20 chapters of the manga
Would this be against Super Boo, Kid Boo, Beerus, Baby, S17 etc.
Heroes and WSJ are the only media that seem to favor Gogeta over Vegetto. All other media and guidebooks including the OG manga have Vegetto > Gogeta, other than that V-Jump entry that just wanked off Gogeta saying he was equal to Vegetto
I don't see why he wouldn't. If Oda wanted him to be forgotten he wouldn't have devoted several title page chapters to his actions post-Skypiea. He'll probably return with a power up like every other part 1 character.
Why would Trunks go SSJ Grade 2 to finish off someone weaker than a form of Cell weaker than the Cell Jr. he was stalemating 3 years prior? That's like Goku going SSJ3 to finish off Dabura. Doesn't make much sense to waste time and energy transforming that far.