Plot-wise, it wouldn't make sense for Future Warrior 2 to ever become massively stronger than SSB Goku/Vegeta due to the climax of story mode, so he gets murked. If we assume he's a Saiyan and the SEG multipliers apply, he wins, though that's assuming a lot.
Golden Frieza (Super 17 Saga) vs SSJ4 Goku (Dragons Saga)
- This is Goku before he went beyond his limits
- Goku can only use 50% of his maximum power
- Goku can't use 10x Kamehameha or Dragon Fist
- No strain for Frieza
Golden Freeza low diffs even if SS4 Goku's at full power. The multipliers and gaps are implied to be very low in GT (eg. SSJ being 2.5x base) and there are a few implications for Freeza and Cell being above what Rild was capable of at this point, so a transformation that amplifies his power by over a hundred times would be able to make him stomp.
MSSJ Goku (Boo Arc) VS Super Bojack
- Goku can use the Shunkan Ido Kamehameha if he finds an opportunity.
CC: The multipliers are indeed implied to be nerfed, but SSJ4 is a potential unlock so the matchup depends on how high you have the boost in the Dragons Saga, and how high you have the Golden boost. I don't have an issue with your conclusion, but nothing's set in stone here.
On topic: Bardock stomps.
Kid Vegeta vs Vegeta Jr
- Equalised physical conditions
- No transformations
Even when a little rage boost from SSJ Gohan was enough to push Super Bojack back?
Xeno Bardock is a complete mystery in comparison. From typical RPG progression though, Base Mira ought to be be at least relevant to some Super characters by the end of XV2 most likely, so SS3 Bardock likely stomps.
Bio-Broly VS SSJ Gohan (Boo Arc)
- If Gohan gets stomped, give him a rage boost for a 20% boost.
Ninja'd. Zangya wrecks due to her being able to attack whilst using her paralyzing strings.
Well, Bio-Broly looks even weaker than SSJ Broly (M10), as Goten and Trunks could harm him, while SSJ Broly could tank their hits. I'll probably give this to Gohan.