I have a question for those of you who might be more familiar with the procedure. Is there a strong bias towards LORs from tenured professors, when it comes to the admissions committee reviewing applications? I have been considering, all along, asking the professors who know me best to write my LORs, but after browsing some threads on this forum (admittedly, not from the Linguistics section) I wonder if I should, for my 2nd and/or 3rd letters, ask instead more senior professors in my department.