Which is easiest to accumulate points and easiest to book flights. Domestic travel only.

What airport do you use and where do you like to go? Makes a big difference.

domestic travel in what country? Or do we always have to assume USA. It is a world forum.

There is no "right" answer. I would ask for the following info from you:

1) How often and much do you travel? Once a year? Fifty times per year? 10k miles? 100k miles?

2) What is your home airport?

3) What do you want to use your miles for? Upgrades? Coach flights within the lower 48? Trips to Hawaii? Business class to Europe?

My home airport is Orlando. I fly about twice a year. I would like to use my miles for coach seats, leisure travel. Travel within the U.S. only. Hope this helps.

I just got a Continental Master Card. I was impressed with Continental because I was able to get a flight from Orlando to London for only 50,000 miles on Virgin Atlantic during high summer.

With the Continental card, I'm not suppose to have to pay for checked bags and after one year I get two tickets to the Continental Lounge. I also get 21,000 miles for getting and using the card.

If you don't mind Houston or Newark airports, Continental does have some of the more modern aircraft flying. Also, Virgin has three flights a day from Orlando to the UK.

I became a little tired of American's MD-80's and no food on long flights and as for United, I guess they are merging with Continental, but most flights from Florida to the West coast seem to be two stops, and I avoid Chicago in the wintertime.

If you only fly twice a year from MCO and only domestically, you should just get a cash-back card with no annual fee, and then just buy whatever airfare is cheapest for your travel.

You shouldn't stick to any particular airline.

I agree with rkkwan. Also look here: http://www.freefrequentflyermiles.com/index.htm

My rule of thumb is that it isn't worth focusing on one program, unless you can earn elite status each year. In addition to the extra benefits of elite status, that also means that you are earning at least one free domestic trip per year. And, if you aren't earning and burning at least one trip per year, then time will catch up and the miles you worked hard to accrue will lose a lot of value.

If you are looking for a credit card as a way to build up miles, then I would a) suggest going with a cash back card and banking the cash back and paying cash or b) looking into the Starwood credit card from Amex, as it gives you a lot more flexibility - you can transfer to many partner airlines, or use the points for hotel stays (often at better per point value than a flight).