Ultimate Dragon Balls Arc Average Score - 0.75/10
Now, the Baby Arc.
For what it's worth, this is the best arc in GT by far. The M2 segment alone helped increase the scale much like previous arcs of DB and Z with Rild surpassing Boo in his base form alone and Baby's parasitic control being quite a unique way of a crafty foe competing with the far stronger heroes. Baby in himself is unique in being perhaps the most justified villain in the entire franchise other than Namek Arc Vegeta, as all he wished to do was avenge and revive his race, a backstory that also links back to previously established, yet not fleshed out lore and done far better than with the Hatchiyack OVA. Alongside this, Super Saiyan 4 also links in well with Toei's previously established lore such as Golden Oozaru being a good throwback to Vegeta's imagination of a Super Saiyan in the anime, with SS4's design helping show the primal return to Saiyan routes. Golden Oozaru Vegeta-Baby further aids in this arc's focus on Saiyans and Tsufurians due to it being the most pure display of Baby's intentional irony of using the Saiyans' power to exterminate them. His use of mind controlling the cast was a unique way of utilising the trope of "turning the heroes' power against them" trope that had been used in the Cell and Boo Arcs, even if it being the third time makes it more of a negative than a positive.
However, there was still a lot of flaws to this arc. For instance, Elder Kaioshin knowing of how to unlock Super Saiyan 4 when he knew so little of Super Saiyans he referred to them as "Super whateveritis" during the Boo Arc. The Sugorokukan segment was absolutely pointless, with the characters met during it having no role afterwards, meaning nothing would've changed by just having Kibitoshin successfully Kai Kai Goku to the Kaioshinkai. Also, the ending is yet again one in which only Goku can be relevant. The arc's themes also seem to not live up to their potential, since for what's essentially a race war between the Saiyans and Tsufurians, nobody seems to acknowledge Baby's point of view, with his role as a sole survivor of his race being little different to how Vegeta and Goku were during the Freeza Arc, but obviously there can't be any empathy towards villains in Toei works. Obviously Baby wasn't a villain who could be redeemed, but no mediation from the heroes on Baby's character did make what could've been good theme exploration in this arc feel redundant.
Score - 3.5/10