Are we following Fate's Rules or just equalizing?

If we're following Fate Rules, he qualifies as a foreign intelligence and doesn't operate under the same rules, if not, it depends on the field, if the Mooncell, BB wins fairly easily, if outside of it I don't think we have an actual look at her capabilities

Fate doesn't really powerscale as well as something like dragonball, so you can't just go "Well this character can do X and Y"

Godzilla easily drags BB.