Obviously he can't have hair and already has no eyebrows so the best thing to do from a design standpoint is to give him spikes like 3rd form Freeza to evoke SSJ3 vibes.
In Piccolo'a pep talk to get Gohan to restore his Ultimate form, Piccolo said "A power you haven't used since Buu..." while showing a flashback(with DBZ Kai footage) to the Super Buu fight. It may depend on the subtitles.
Tagoma was as strong as Gohan at his best, stated by Gohan. Base Gohan could not manage anything against Tagoma and had to use Super Saiyan to win. This only makes sense if Tagoma is as strong as Z-Sword base Gohan. In the lead-up to the ToP Piccolo said Gohan hadn't used the ultimate power...
Dai Kaioshin became the dominant absorption despite South Kaioshin being stronger. Therefore Piccolo isn't necessarily dominant over the base kids in the absorption due to being stronger.
Base kid Trunks: 12
Piccolo: 14
Kaioshin: 16
Pui Pui: 20
Base Saiyans: 30
I see your point though. It kind...
I place him at 27k personally. Vegeta getting scared at the initial transformation would reduce his Yūki as what happened with Cui. Scared Vegeta would be 16k I think. Scared Cui at 12k.
It came out before Super Buu was a prominent part of the story right? The special guidebook said Goku "maybe even defeated Majin Buu" so it might be a parallel reality where Goku destroyed Fat Buu.
Super Dragon Ball Heroes anime showed Kid Buu and Super Janemba exchanging blows near evenly so...
Gogeta is only somewhat behind Vegetto overall, not to the degree that base Vegetto > SSJ Gogeta. Metamora should scale from matched powers while Potara scales from full combined powers.
If he expects 3 base Saiyans to make up ~55% of the Buu meter then the Buu meter can't be indicative of Buu's true power on a linear scale. If you want to take it literally then Pui Pui >>> 18.3% of the Buu meter when considering each base Saiyan 1/3 of the remaining Buu meter.
But if Baby-Gohan is not much stronger than Gohan then it would still fit with an overall addition model.
Watching the episode where Baby-Goten fights Gohan, Gohan says he can feel someone else's ki mixed with Goten's. Gohan doesn't say anything about Goten being stronger than usual so that...
How does Baby's power scale with his hosts? Is it (Baby+base Saiyan) x SSJ or Baby (base x SSJ)?
Such as:
Overall addition:
Baby: 100
Host: 300
~Host SSJ: 15,000
~Baby-Host Base: 400
~Baby-Host SSJ: 15,100
Base integration:
Baby: 100
Host: 300
~Host SSJ: 15,000
~Baby-Host Base: 400
~Baby-Host...
When you think about it, the scene of SSJ Trunks not having an effect on 17 and 18 despite his best efforts would suggest that it is not a multi-fold blast unless we want to say Piccolo gets many-folds stronger from fusing with Kami.
And then we have Vegeta trying his best Big Bang Attack on 18...