We've pretty much given up on SW.

They always used to be our first choice, but between the 'family boarding', the EBCI and it's abuse by the seat savers it's become a crapshoot if DH and I can even sit together anymore.
The last time we flew SW, we ended up in the C boarding, even with the midnight online check in. Not that it made much difference -- the seat savers were out in full force, and had luggage and bodies staked out all over the front 2/3 of the plane. We took 2 seats in the third to last row, and watched the seat-swapping follies go on for almost another 20 minutes
DH is close to 'a person of size' as determined by SW, so if we can sit together, nobody has to notice he might overflow a bit. Which is another reason not to fly SW for us. We've never even been given a second look on other airlines.
We have a choice of airports, in 2 different states. The travel time differs by maybe 15 minutes, and the airport shuttle charges the same to both from our house.
SW is a little closer, the parking is a lot cheaper (if we drive ourselves), and offers several non-stops to Orlando, but we
have to vacation during school breaks, which changes the whole equation. We're planning a trip end of April, and almost all of the low-cost return flights are
already sold out on SW. But for under $30 RT more than SWs lowest fare, we can get pre-selected seats, 1st bag free, and wider seats with a different airline.