Gogeta has two sayains power,so he is more powerfull.

It depends

goku ssg

With all the new content it's hard to say, but since Vegito and Gogeta ,using the time period they were first shown then Goku in his base form(Revival of F) is stronger than SSJ Vegtio and SSJ Gogeta, now if it were SSJ4 Gogeta than He outclasses SSGSS Goku, SSGSS Vegeta ,Beerus,and Whis