Powerscaling wise DBZ gets massacred. GT is a alternative universe where Goku at base can take on SSJ3 lvl opponenets like Rildo and casually solo Super Perfect Cell and Frieza who are stronger than before whitout skipping a beat. Seriously how strong do people think SSJG is compared to Goku SSJ4? if GT Goku at base lvl is around Goku SSJ3 lvl from DBZ then that means GT Goku at SSJ3 is around 50 times stronger than his DBZ counterpart witch is huge! and i'm not even talking about SSJ4. Do people really think SSJG gives like a x100 boost? come one we don't even know for sure if SSJG is stronger than Vegito and if he is maybe its just by a little and Vegito isn't a 100 times stronger than Goku SSJ3 and here's why:
People believe that that Gotenks SSJ is around Goku SSJ3 lvl, alright lets go with that. Now add the SSJ2 and 3 transformations above that and so that makes Gotenks SSJ3 around 6 times stronger than Goku SSJ3. When Super Buu absorbed everyone his power should have increased by alot 10-15 times sounds alright. Vegito in the manga was SSJ when he beat Mystic Buu and Vegito was winning that fight quite handily but Buu made Vegito sweat a couple times more so when Buu lost his temper and tried to destroy everything. That tells me that Vegito is stronger but not to the point he can tank everything wihtout problem like Frieza vs namek warriors style. So if you add everyhing up SSJ Vegito is perhaps 50-60 times stronger than Goku SSJ3 witch would be the same as GT Goku SSJ3. Now how much stronger is SSJG compared to SSJ Vegito? Bills is strong but THAT much stronger than Vegito? no way. There are even people saying that Vegito needs to be SSJ3 in order to beat Bills, witch would make him 6 times stronger well....
We don't know how much stronger SSJ4 is for sure. What we do know is that Goku SSJ3 lost to Baby Vegeta in freaking base form and then Baby absorbed the powers from Bula, Goten, Trunks and Gohan and then munches on the energy from the entire human population and for his final act goes freaking Golden Ape witch at least gives him a x10 boost.... and Goku SSJ4 was still stronger. Sorry but imo Bills is gonna have trouble handling an SSJ4 nevermind freaking Omega Shenron, the dragon who beat the ever living crap of the entire Z cast (twice), 2 SSJ4 at the same goddamn time all the while he lost his 4 star ball, ohw and Goku SSJ4 was even juiced up in that fight, ohw en Omega tanked the Big Bang from goddamn Gogeta SSJ4, ohw and surived the suicide attack from Nuova ohw and he regen'd back from Goku's insta win HAX attack Dragon Fist. It took a super charged Spirit Bomb to put that f****r down. What did Bills do? beat the Z cast and beat an SSJG.
Bills or SSJG has shown me nothing impressive, nothing Vegito could't do. Bills beating SSJ3 Goku or Bills beating the Z cast? Gohan SSJ2 showed what a x2-3 difference in power means... so yeah Vegito is gonna have some REAL problem defeating people who are 50 times weaker than him haha. Really every single time i read treads about GT its always people voting against it, i swear right now i can make a tread about Goku SSJ4 vs Frieza and people will pick Frieza because *lol GT sucks lol Goku cut by glass* its the only thing you hear from people. Yes GT has shit logic and stupid shit but DBZ isn't a stranger to that either. So yeah i vote for the SSJ4 class super android who can absorb energy and counter teleportation and survive a SSJ4 kamikaze attack and the dragon with elemental abilities and regeneration who was defeated by an super charged spirit bomb after he got blown to hell by an HAX attack and took a beating from a almighty fusion character.