Just got back last night. We usually don't fly Delta, but got a really good price and took it. Pros: Love that Delta's pilots always tell you where you are on the takeoff list. Each time we were #1, #2 or #3 for takeoff. Even if we were #10, it's nice to know. We made a stop in ATL to change planes. ATL-MCO had the funniest flight attendant who kept cracking jokes. It was great. Easy check in. Cons: Well, on the way down, we changed planes in ATL and when we got to MCO, one of our bags (the one with all my and DHs clothes) was missing. Somehow, it went to Puerto Rico. Yeah, that's right, Puerto Rico. We landed at MCO on Dec 9 at 1:30pm and didn't get the bag until Dec 10 about 9pm. That was yucky. Especially when we were told they would reimburse us $25 per day so we at least could buy some clean underwear and stuff and then when we turn in the receipts, they say they won't reimburse for the first 24 hours. That kind of irritated me, especially as I had a manager confirm we could purchase items for ourselves. So I am writing a letter. But I think that I will probably not go out of my way to choose Delta in the future. We also were delayed in ATL on the way home a couple hours. That was a maintenance issue with the aircraft. At least we were put on a different plane, but it just made for a long travel day. National: Had Emerald Aisle. We came in on the B side. Lots to choose from. Several mid-size SUVs on the EA. We picked a red Jeep Liberty as we thought it would stand out in the parking lot. No problems on check out...no problems on check in. Paid a little more than Alamo for EA, but am happy with it.