What commercial airports have you flown into/out of/deplaned at?
The running list to the best of my knowledge and admittedly rather limited travels:
Baltimore
Fort Lauderdale
Westchester (NY)
West Palm Beach
Atlanta
Orlando
Jacksonville
Las Vegas
Miami
Tampa
Washington Dulles
Washington National
Louisville
Dallas Fort Worth
Nassau (Bahamas)
Raleigh Durham
Grand Canyon
North Las Vegas
Norfolk
I'm not including Birmingham (Alabama), where my plane landed as a stopover but I never personally deplaned.
I'm also not including the various small general aviation airports my dad flew me to when he flew recreationally.
My favorite airport probably would be Jacksonville--it's large enough to be considered a major big city airport with all the usual amenities but not so large that it's overwhelming, plus it's very bright and airy.
My least favorite would probably be Atlanta.....it's just so huge, and having to transfer planes there can be a hassle and a half, especially when your incoming flight is in one terminal and your outgoing flight is several terminals over, and you only have a half hour in between flights.
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Los Angeles (LAX)
Long Beach (LGB)
Ontario (ONT)
Santa Ana / John Wayne (SNA)
Oakland (OAK)
San Jose (SJC)
San Francisco (SFO)
Amsterdam (AMS)
London Heathrow (LHR)
New York (JFK)
New York (LGA)
Las Vegas (LAS)
Detroit Metro (DTW)
Cincinnati (CVG)
Lexington (LEX)
Atlanta (ATL)
St. Petersburg, Florida (PIE)
Denver Stapleton (DEN)
Denver International (DEN)
Sacramento (SMF)
Washington DC - Dulles (IAD)
Washington National (DCA)
Seattle Tacoma (SEA)
Tampa, Florida (TPA)
Chicago Midway (MDW)
Chicago O'Hare (ORD)
Houston - Hobby (HOU)
Dallas Fort Worth (DFW)
Houston - BFEE* (IAH)
Boston (BOS)
Providence (PVD)
Nashville (BNA)
* - I refuse to acknowledge airports named after members of the BFEE. 
If You are a native Houstonian, you don't call it "Intercontinental", you call it "Intergalactic". 
Nobody calls it "Bush".
Houston Intercontinental Airport
Hobby (William P. Hobby Airport - Houston)
Love Field (Dallas)
San Antonio International Airport
Denver International Airport
Los Angeles International Airport
Sydney (Kingsford Smith) Airport (Australia)
Auckland Airport (New Zealand)
It's been decades since I went through San Antonio, Denver, and Hobby, so I don't know how good the experience is for getting in and around them. When I was returning from New Zealand, I thought Love Field was the best domestic airport, with Sydney being the best of the two overseas. LAX was the worst, at least in the domestic terminals. Their international terminal was like going into another country, one that was modern and pleasing 
Baltimore (back when it was still called Friendship)
Fort Myers (the old Page Field)
Naples, FL (no longer has commercial flights)
Miami
Tampa (changing planes)
St. Louis (ditto)
Springfield, MO
Atlanta
JFK
San Francisco
Chicago-O'Hare
Chicago-Midway
New Orleans (that flight stopped over in Birmingham, too!)
LaGuardia
Indianapolis
Toronto, eh?
Denver (the old Stapleton, to change planes)
Newark
Honolulu
Kahului, Maui
Hilo
Kona
Lihue
Moloka'i
San Jose
LAX
Houston (plane change)
Memphis
Denver (DIA, actually went there)
That may actually be it.
edit: forgot Las Vegas (unscheduled stop for fuel!), Sacramento, San Diego, Orlando, Cincinnati, Nashville (plane change), DFW, Salt Lake City (plane change), Washington Please-Don't-Call-It-Reagan National, Washington Dulles!
