Originally Posted by
Siriel
If the fight happened at CC Corps Bulma could set something up, but she's never shown anything that can really be carried into the arena.
Pan is probably the strongest of the lot - Dragon Ball Z shows her having flown around the world and not being particularly tired.
If we assume that Future Mai's weapons were made by Future Bulma and are comparable to other weaponry in Super, she might have a shot. But since there are at least three people she'd need to shoot to win, I'm not seeing it.
Videl and Chi Chi are probably around the same level, though Chi Chi hasn't been shown to fight in decades so that requires assuming she didn't get weaker.
So I would say It's Pan-Videl-Chi Chi-Mai-Bulma, in terms of who has the best odds.