Imagine if people were fans of their favorite model vehicle because they believed they could skip oil changes. I kind of view Toyota trucks that way, but when I drove one I still did the routine maintenance.
I'm not OCD about cleaning, but after a full day at the range, I almost always clean. Sometimes if I shoot only a magazine for whatever reason, it might go in the safe as-is if I'm busy.
If we're comparing product attributes, I don't see AKs functioning after being rusted shut, or mudcaked as offsetting the fundamentals like ergonomics and accuracy.
The care and feeding of an AR is reasonable. The field stripping protocol is easily learned, and it's an easier rifle for many people to learn to shoot competently.
I think it's great we have a variety of carbines to debate about, but as a grown-up common sense has the AR winning for me.