At this point it would be nice if the two Emma Watsons fought each other
You can imagine Emma Watson, the actress, in place of a girl in red shorts in that picture:

I think that would be the final in this scenario

Gal trained Israeli Army members in Krav Maga. Watson would have to train for decades to catch up to where Gadot is now, and she'd still be at a size and experience disadvantage.
I agree that Gal would win, but I doubt that she is such a good fighter as many people seem to imply. To train soldiers doesn't mean that you have much fight experience, it's just that you know what to do, are physically able and can teach others. But that doesn't mean that you are a an amazing fighter yourself.
I mean, I'm sure that Gal is capable fighter, but it's not like she is a pro, so a trained actress could still pose a challenge or even win.