I recently had an f/a tell me that she thought the J seats were more comfortable than the PS F seats? How are the seats in PS J?

Also how does UA PS F compare with AA F on these routes? I know that people seem to surely say UA PS J is better than AA J, but I would like to find out on the F products if all like UA, or if there are some people that prefer AA's service? FYI I have never flown AA F transcon.

On my outbound there was a chocolate, but on the return baked cookie in F. Also got the soup and salad in F on return morning flight just before landing.