BA has recently (and finally, after years of cuts under Alex Cruz) upgraded their PE dining, both in quality and appearance. On a round trip LAX-LHR recently, I found the food to be on par with AA's, and it is also served in ceramic tableware now. (Though on ORD it may be only the first meal, I know the shorter flights have a more abbreviated second service.)
OP mentions they are OW emerald, but for anyone who isn't a sapphire or above, AA would be the logical choice because of free advance seat selection.
I just flew First and Club World and the food was atrocious in both (though far worse in Club World to be specific); thus, hard for me to believe that food in WTP/PE will be appetizing.
Even after allegedly upgrading WTP, only the main entree is served in proper china whilst the salad and dessert are usually on a cheap plastic plate or bowl whereas AA serves all PE items in the same china that it uses for domestic First with the exception of drinks which are served in plastic on PE.