Is it smarter to accumulate miles with AF or DL?

1. What is most important to you in a frequent flyer program (FFP)?
Upgrades and lounge access are the most important.


2. How many miles do you usually fly each year? How many flights/sectors?
25K-50K

3. What fare class do you usually buy?
Premium eco

4. Are you able to choose your airlines and/or class of service? Do you travel for work and/or pleasure?
I am able to choose airline and travel for work 75% of the time.

5. Which routes do you fly most often
US domestic or NYC-CDG

6. What is your home airport?
JFK/EWR/LGA

7. Do you have status in any FFP? What is it? How miles do you have banked in a FFP, if any?
none because i keep switching!


8. What are your preferred airlines, if any?
DL/AF

thanks!