If AS were to give out it’s MVP status at the inception, then yes it might make a difference.
It looks like she would get the MVP status @ the end of the flights however. If she will continue to be a FF, then AS might be the way to go.
If not, do the WN show. Its a 2 hour flight and the only difference she will see between AS and WN coach is the color of the seats.
Ticketless Awards and paper Awards are valid for one roundtrip to ANY city Southwest Airlines serves in the continental U.S.
They are also doing an on-line booking bonus that gives her an extra credit for each RT booked.