Gogeta and Vegito, fusion forms of Goku and Vegeta, differ in personality and power. Gogeta's personality varies, being playful in GT and aggressive in Super. He quickly finishes fights and calls Goku 'Kakarot'. Vegito, a Potara fusion, surpasses Gogeta in power, winning in prolonged battles. However, Gogeta is stronger in brief fights. Super Saiyan 4 Gogeta is deemed the most powerful character in the Dragon Ball Z/GT universe.