I'll just note that AAdvantage awards on AY and QR will always be a fixed price. By contrast, AAdvantage awards on AA are dynamic: you will find U.S.-India Economy Class awards for 30K miles on some days, but not on others.
AA says that its 777-300ER (which seems to be what is used on the JFK-DEL route) has a 36" seat pitch in MCE. I doubt that Economy seats on AY or QR come close to that.