@ChaosTheory123 I replied to the bit on pre-RoSaT SSJ Gotenks’s power on NF but the stupid place has the post waiting on mod approval so I’ll copypaste it here
Pre-RoSaT SSJ Gotenks should be stronger than fatty since he was portrayed as their last hope when Goku decided to leave it up to the kids
Chapter: 472 (DBZ 278), P9.4
Context: after explaining that Fusion lasts 30 minutes
Goku: “With these two [Goten and Trunks], if they just manage to perform Fusion successfully, I think they’ll definitely be able to defeat [Boo] within 30 minutes. Fusion is just that extreme.”
Chapter: 477 (DBZ 283), P11.8
Context: Chi-Chi thinks Goten will get killed by Boo
Goku: “Don’t worry. If he perfects the technique he’s trying now, he definitely ain’t gonna lose.”
Piccolo’s reaction to Base Gotenks:
Chapter: 480 (DBZ 286), P11.4-5
Context: after Piccolo says to try Fusion again, as Super Saiyans
Gotenks: “Hehhehheh…Aren’t you underestimating me? Like this, I’m more than enough to defeat Majin Boo.”
Piccolo: “Yo-you idiot! What are you saying?! You don’t know anything about Majin Boo’s fearsomeness! No matter how incredible you may be, at that level there’s still absolutely no way you’d be able to win!”
Then SSJ:
Chapter: 482 (DBZ 288), P7.2-3
Context: after Super Saiyan Gotenks forms for the first time
Piccolo: “…Yeah…Your ki really is absolutely incredible, but how about your movement?...Show me a little.”
Gotenks: “Is that alright? If I show you here, the house might break. I’ll do it on the ground.”
Piccolo praised his ki and doesn’t really contradict Goku’s estimation, only questioning his movement. When Gotenks speeds away to fight Fat Buu:
Chapter: 482 (DBZ 288), P9.3-8
Context: Piccolo finally catches up to Gotenks
Gotenks: “You’re slow. So you finally got here? Besides circling around the Earth several times, I even took a little afternoon nap. [ ] Fuffuffuh…So you can’t tell just from my speed just now? My super-duper incredible power…! …Which is to say that the test is over, and I’m going to go take care of that annoying Majin Boo right away…”
Gotenks takes off Piccolo: “H-hey, you idiot! Kuh…! Wh-what a shithead…H-he already has only 1 minute left that he can stay merged. That dimwhit…!”
Piccolo only notes Gotenks’s time is limited, but doesn’t mention he’s still too weak to beat Buu or anything like that. Now when Super Buu appears, Piccolo basically outright says Gotenks has no chance before all the training
Chapter: 487 (DBZ 293), P13.5
Context: as Piccolo plans on having Goten and Trunks train in the Room of Spirit and Time
Piccolo: “Can’t you tell…?! As they are now, even if they perform Fusion they can’t win, no doubt about it…! Tell them that if they don’t want to die while they’re still just little brats, then they should train as much as they can…!”
Pretty stark contrast
So yeah, SSJ Gotenks before training should be stronger than pre-split Fat Buu since it was never really contradicted when the knowledgeable characters could’ve done so. Gap shouldn’t be huge but he’d have an edge on the pink lard in terms of overall strength