I have the same issue/question as some of the other posters: I travel quite frequently for business in C but have been putting miles on UA so I could get free domestic trips/status. But these minimum flights on UA metal and the future minimum spends to maintain premier status have me irritated. I earn the majority of my *A miles on LH. Still debating if it's time to switch to LH Miles & More.

(1) What is your home airport? LAX
(2) What types of fares do you usually buy ? C for work. Personal: mileage redemption on C for int'l
(3) How many miles do you usually fly each year? >50K
(4) Do you have any kind of status at present? What is it? UA Premier Platinum, AA EXP
(5) What is most important to you in a FFP? From most to least important: good award redemption, upgrades, lounge access
(6) Which routes do you fly most often: Int'l TATL
(7) Preferred Airlines LH
(8) Do you travel for work or pleasure? Work, but pleasure quite a bit. That's how I burn the miles up.

Appreciate any advice out there.