I am now based in Atlanta and I have been shifting between flying Southwest (Air Tran) and Delta as those two airlines have the most flights.

I was thinking of getting a Delta Skymiles AMEX card but then decided to consider Southwest.

My perceived advantages of Southwest is that they have less overall fees, do not charge for baggage and that it is easier to redeem award flights.

My only perceived advantage of Delta is that it is not considered a "budget" airline and it has more flights from a national/global perspective.

Any advice would be appreciated. Thanks.