Aaaaaaand... Got another airport to add to my collection.
ATL - Busiest airport on the planet, and you know it first-hand when you're there.
BOS - Old and run-down, and I saw several mice scurrying around.
CLT - Excellent food concessions
CMH - Meh. When I flew into Columbus, my flight had to circle for almost an hour because Air Force One was on the ground, but that wasn't the airport's fault.
CVG - Second only to Newark (EWR), and tied with Charlotte (CLT) for having great food concessions.
DAY - Meh. The best part about Dayton is leaving it.
DFW - Have fun walking forever between gates.

DTW - Lots of things to do if you're on a longer layover.
EWR - Absolute best for restaurants and shopping that I've been in
IAD - Has the worst food concessions of any airport I've been in, but the mobile lounges are cool.
JAX - Along with ORF, one of the two nicest small airports I've been in.
JFK - Has some really cool, historical terminals, especially the old Pan Am terminal, which is now Delta.
LGA - This place gets my prize for the absolute worst, scummiest, and most run-down major airport in America. It just sucks ass all around, especially in the fact that you have to go outside to move between terminals, and have to go back through TSA security to get to another gate.
LIT - Your food choices are Burger King or Burger King.
MCO - Like ATL, but a bit more pleasant
ORD - Terminal 3 smells like urine.
ORF - A very attractive and well laid-out small airport. Only thing that sucks is seeing Pat Robertson's big, ugly mug plastered on the walls.
PHL - Meh
SAN - Meh
SAT - Meh
STL - This gets my prize for the suckiest smaller airport in America
YYZ - I never buy anything but a cup of coffee at Timmies here, unless I want to get prison-raped without lube through my wallet. The prices at Pearson would make a Somali pirate or a Nigerian letter scammer blush. Almost ten bucks for a small sandwich, for instance. Likewise, the duty-free is absolutely embarrassing. "Souvenirs of Canada" made in China.