These days, I'm flying UA so I have a better chance to actually make my connection and get where I am going. Most of my UA itineraries route me through EWR. Think about that for a moment.

The AC seat has a bit more width and an annoying table. I find the UA seat slightly more comfortable. But overall, there's not enough difference for me to choose one seat over the other. I am 6'4" and not that wide.

AC's food is slightly better, but not great.