Something that flew under a lot of people's radar in DB is if Goku had taken kami's offer at the end of OG Dragonball to become earths new kami Goku would have obtained God Ki and immediately would have entered a permanent super Saiyan god state because ssgod is just Goku with God ki, it wouldn't have mattered about his prior power level his god form alone would put him incredibly far over ssj3 due to how the ss god multiplier is handled. dragonballz