I agree with most of your review, it is very even handed. I think you have underemphasized the seating though. In J, the flat (but angled) beds beat the hell out of the UA cradle seats in C. Perhaps you are a back sleeper so it wouldn't matter much, but as a side sleeper, the flat beds really make a difference.

Ask any UA regular if they would rather a C or F seat on a p.s. redeye, then tell them it is a 3 times longer flight. I think they'll take F.