When I had ASF and mice, I preferred the ASF. They smelled "less bad" than mice. I think they grow a bit faster too, but I wasn't exactly weighing them and such, just my personal opinion.

Mice are cuter and can be nicer pets. They come in way more pretty colors too.

But if I were going to breed for food, I'd go with asf. I did not experience any issues with ball pythons eating asf and then refusing to eat rats or mice afterwards. They seemed content to eat whichever rodent showed up.

Personally, I raise rats and prefer those over either asf or mice vastly. But since you can't have live rats, yeah, asf probably.