In this fusion, Goku is the dominant influence. He is the third most powerful behind Vegeto (2nd) and Broly (1st). Gogeta is usually Super Saiyan 2 directly after Fusion. Gogeta is portrayed as a very confident and focused. Gogeta and Vegeto share second strongest position because they cannot co-exist simultaniously.
Gogeta's power level is never as strong as Vegeto's because the Fusion Dance technique used to form him is inferior to the Elder Kai's Fusion Earrings.