As long as us civilians are limited to semi auto only, and are not allowed to have a full auto rifle, the AK47 is crap. A semi auto version of a “spray and pray” weapon is not worth buying, imo. The AR is a precise rifle and performs very well as a semi auto. Not to mention there are countless aftermarket accessories and upgrades to make it even better.
But beware, the more precise you make it, the more finicky it is. Keep it clean and keep spare parts. In fact, it’s not a bad idea to keep a spare rifle. I have three. And spare parts for each.
If The US Army used AK-47s they would still win. its all about air and artillery superiority, logistics and communications.