Is vegito most powerful?

Vegito is the strongest character within the original Dragon Ball manga, and one of the most powerful characters in the entire series overall. As a fused Saiyan, his power is a result of the combined power of Goku multiplied by Vegeta, amplified many times over.

Who's stronger Vegito or gogeta?

While on the surface the two appear to be on equal footing, Gogeta is superior to Vegito for one very simple reason: Vegito has a power limit. ... The up-side to this is that Gogeta can fight with all his power, and even break through to his Super Saiyan Blue form without worrying about consequences.