You'd get tired of carrying an AR all day, every day. You say you wouldn't, but you would.
OC is more natural in the wild than in the city.
^^^^^^^
I think I could learn to live with it. That said, I would purpose build a light one.
I agree OC in the wild is more common and draws less attention than OC in the city. But do the arguments change with regards to the advantages/disadvantages of each type of carry? If you choose to carry concealed so that "city scum" don't know you are armed, why is it different for "trail scum" to see you are armed?