The phrase "although she prefers" is correct and usable in written English.
It can be used to introduce a contrast between two ideas, typically when discussing preferences or choices.
Example: "Although she prefers tea, she decided to have coffee this morning."
Alternatives: "even though she likes" or "despite her preference for".
Although she prefers to be alone, Mia craves connection.
And she still harbors a grudge against the U.S.L.T.A., although she prefers to discuss it off the record.
Although she prefers that her clients come in person for the three-hour appointment, she occasionally makes an exception.
Even literary novelists such as Margaret Atwood dabble with science fiction, although she prefers to describe her Booker-shortlisted novel, Oryx and Crake, as speculative fiction.
The saleswoman also recommended Aerosoles and Naturalizer brands, Ms. Brown said, although she prefers shoes by Rockport (dress shoes from about $100 to $150) and Clarks (dress shoes from about $85 to $140).
As a woman Talieh is banned from attending football matches in Iran, and although she prefers watching the game on television, she was never going to miss such a rare opportunity to watch the national team in her adopted hometown.
Although she preferred paper bills, Mrs. Boughey, 26, agreed to the electronic alternative.
Although she preferred to live in Paris, her career was based in New York, where she had regular gallery shows beginning in the 1940's.
Nearby, 25-year-old Mercedes Galecio, an American-raised Ecuadorean from New Haven, said that although she preferred the Copacabana in Manhattan and clubs in Queens, Fantasy's mixed-age crowd and no-need-to-impress atmosphere was a nice change.
Guðrún had been courted by Þorleiksson and his foster-brother Kjartan Ólafsson, but although she preferred Kjartan, she gave herself to Þorleiksson on the basis of a false rumour that Kjartan was engaged.
