Feel like you really have to categorize here. For domestic airports with an AS presence:
Favorites:
PDX - If you know you know. Have you seen that carpet?
SFO - only for T2. It's such a joy to use this terminal as a frequent AS flyer. Pre-check is rarely more than 5 minutes, Clean and modern amenities, decent food options, AA lounge is one of the better domestic ones. T1 and T3 are meh, Intl Terminal is pretty decent. Getting to do simultaneous takeoffs/landings is cool. The views coming out are always spectacular, whether you're over the bay or over the city/hills->ocean. Only downside (and it's a big one), is the distance between runways—not enough to allow for IFR parallel landings, so any amount of weather means massive delays. Real PITA to fly through during the winter.
LGB - OK not an AS airport but I love it so much, retro feel (but properly modernized) and super efficient.
HM: SNA, SJC, BZN, MSP, SAN, DTW
Reviled:
BOS for AS - the 3 C gates you have to use are truly abysmal. Siloed off from the other C gates, no lounge, no food, old, etc.
JFK - Terrible in every way. Hard to get to. Terrible at managing traffic flow. Old low ceilings. Dirty. Feels like an extension of Penn Station. All around awful.
EWR for AS - similar to BOS but slightly bigger and there is an AA lounge, except it's horribly outdated.
HM: LAX, AUS,