SSJ2 Vegeta is way stronger than Broly, Cell, and basically every single villain before the Buu Saga, so he won't have any trouble bringing Wonder Woman down, should she give him the chance. While I'm on the subject, I know that Diana is a great fighter, but she isn't quit...
and Ultra Instinct), Vegito ( Super Saiyan 2, Super Saiyan God, Super Saiyan Blue\, and Ultra Instinct), Beerus, Broly, Cell ( Golden Cell), Frieza ( Golden Frieza), Future Trunks, Goku Black ( Black Rose), Gohan ( SSJ2, SSJ3, SSJ4, SSJ Blue), Hit, Jiren, Piccolo, Toppo, … ...