FlyerTalk Forums Expert How-Tos and Guides
 

Before posting please read POSTS 1-3 for a comprehensive overview of how to select a program.
If you already plan to focus on one particular alliance, please visit the sticky in the relevant forum: Deciding on a oneworld FFP or Which SkyTeam FFP or Choosing a Star FFP
List of frequent flyer programs from Wikipedia

Questionnaire: Copy and paste into your post
Provide the requested information.

1. What is most important to you in a frequent flyer program (FFP)?
upgrades, priority services, baggage allowance, good award redemption rates, better award access, lounge access, etc.
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2. How many miles do you usually fly each year? How many flights/sectors?
less than 25000 miles, 50000+ miles and 20-25 flights, etc.
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3. What fare class do you usually buy?
first, business, premium economy, economy
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4. Are you able to choose your airlines and/or class of service? Do you travel for work and/or pleasure?
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5. Which routes do you fly most often?
transatlantic, domestic USA, intra-Asia, etc.
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6. What is your home airport?
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7. Do you have status in any FFP? What is it? How miles do you have banked in each FFP, if any?
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8. What are your preferred airlines, if any?
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