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.
Upgrades, Priority Service, redemption rates (although less important)

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.
Unknown at the moment. I would imagine it would definitely be greater than 25k, probably closer to 50k-75k (new job, so a little unknown)

3. What fare class do you usually buy?
first, business, premium economy, economy
Economy

4. Are you able to choose your airlines and/or class of service? Do you travel for work and/or pleasure?
I can choose my airlines (for the most part unless there's a large price differential), but not the class of service. I travel for work and pleasure.

5. Which routes do you fly most often?
transatlantic, domestic USA, intra-Asia, etc.
Most likely domestic USA, although it will be a lot of long domestic routes

6. What is your home airport?
SFO

7. Do you have status in any FFP? What is it? How miles do you have banked in each FFP, if any?
No status. About 40k miles in Delta and 9k in United

8. What are your preferred airlines, if any?
I have a strong personal preference for Delta, although I understand that SFO and DCA (an airport I believe I will be flying to frequently for the next couple months) are more United friendly. I'm torn between Delta and United