Originally Posted by
Adelphos
The point regarding Main Cabin Extra vs Comfort +
1) There seem to be fewer Main Cabin Extra seats - the American 737-800 and 737Max have three rows, for example - Delta's comparable A321 have five rows. So there are fewer opportunities to get a MCE seat
AA's 737's have 5 rows of MCE for a total of 30 seats, this is 6 fewer than DL's similar 737-800. One difference between AA and DL is that American markets almost all the exit row seats as MCE, whereas DL tends to puts Comfort + at the front of the cabin.
DL 321's, which are comparably larger planes, have only 29 Comfort + seats. Americans' A321's have 36 MCE seats, with 47 in the new A321 Neos.