The legendary reliability of the AK doesn't exist when you include ALL the guns sold as one in America today. Overall, they have earned the reputation they get, cheap, with glitches.
Durable, yes, don't mistake that with reliable. Junk AK's pop up in posts every month, there is a long trail of tears where the word of mouth reputation of the AK was gutted by the cheap junk imports. There's NO common blueprint for them, you CAN'T indiscriminately swap parts and keep it running.
Beyond that, some have hand picked cherry AK's, primarily from well industrialized nations like Yugoslavia. They are the exception, not the rule. Will all the parts interchange into a Chinese made AK? No. And you better have a serious assortment of tools in that go bag to do it.
The AK operator controls are no great asset, either. The charging handle is on the wrong side, better for parading miles down Moscow Square. The top cover is useless for mounting optics, and most of the accessories now on the market came because of the dynamic aftermarket built on a competitor's design. AK's are improving because they adopt AR parts. Very little new on their own.
In terms of ease of use, who cares if the AK is uber durable when it won't help the user in actual combat? The wrong side reciprocating charging handle can hang up in doorways and openings, it has no bolt hold back which forces the user to 1) notice they ran out of ammo in a firefight because it went "click!" 2) load the mag against a closed bolt, and 3) wrong hand cycle the bolt against the fully loaded mag spring tension.
It's not how good some youtube warrior does it, how fast is the average AK reload compared to the AR? Face up to it, a MODERN combat weapon doesn't screw with the operator and force them to do things in an arbitrary manner. It HELPS them.
You want a real combat weapon, the only one on the list is the AR. Frankly, a good case could be made AK vs. Winchester 94 Lever gun. The .30-30 won't lose much ground to an AK, if anything, the only difference is speed of shooting. The lever gun is more user friendly, something people who can pay money appreciate to the tune of over 5 million sold.
People who had no choice about their service to their country, eh, they get AK's. I feel sorry for them, they are obviously handicapped by the choice. They have generally lost most tactical confrontations when they come up against free world weapons. It's why the AK is symbolic of terrorism - they can't win a fair fight.
Love the underdog all you want, choosing a loser gun is a bit naive. It's not reliable, it's harder to operate, when it breaks, it's stays that way, few owners have the skill to cut welds or remove rivets and repair one. In the last ammo panic, it dried up. .30-30 was still on the shelf, and more likely to be found everywhere.
And some poor guy will get one under the tree in less than a day, and be overjoyed. Me? I'd be asking when the gunstore opened to get money down for a real combat carbine.