Hello all,

We are travelling from Phoenix to Virginia this summer for a vacation and have received a generous offer of First Class tickets from family. Best flight choices are on Delta (through Atlanta on 737-900ER) and American (through Charlotte on A321), although Delta's layover is longer. Not having flown First Class for many years, and likely not again for many more, is there any substantial difference in the quality of service between these two airlines or should we pick flights based more on departure time/layover time, etc. I know not to expect too much, but would like to maximize the experience to the extent we can.

Any and all opinions welcomed - thank you!