Which of Son Goku's God Ki forms is stronger?

That’s from the Resurrection movie right? Is that worth watching?

In terms of raw power, Super Saiyajin Blue is more powerful. That’s because it is a more advanced version of the Super Saiyajin God form, just like Super Saiyajin 2 is a more advanced version of the basic Super Saiyajin form. The aren’t really any differences between the anime and the manga versions, though the manga has a lot more additional information about both forms. For example, the Super Saiyajin Blue form cannot be used at full power multiple times in a row. So if you use it a lot, it will be less powerful each time until you give it a rest for a while.