Originally Posted by Renegade27

I fly about 100k miles /yr. Upgrades, preferred seating and premium services are important to me.
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I'm thinking about splitting my loyalties to stretch to at least one 50k and one 25k (possibly 2x50k statuses).

1) If I'm going to dilute my star alliance status am i better off with Delta or US/American?
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Figuring out the best FF program to earn status on for my common domestic routes isn't so easy! . Thanks in advance for your thoughts!