I need to know what airline to fly. I have a lot of aa miles, but won't get elite status on any airline this year. I'm a college student, and I'll be studying in Germany next year, making roundtrips between LHR-SFO and Frankfurt-SFO. I'm looking for the airline with the best prices between SFO, SJC, or OAK and Europe, as well as which airline most frequently upgrades elite members to business or first class. Any help is appreciated.

Thanks!
Charles
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