most school prefers a letter from a pre-professional committee, but only if your school has such a committee. Also be aware that sometimes different school requires extra letters, or a specific letter from a certain type of professors.
So check with the individual schools.
One interesting thing about the pre-professional committee recommendation. A friend of mine goes to a small private liberal arts college in Pomona, CA. When she applied to med school, she had to get the committee's rec letter bc there is a preprofessional committee at her school. Apparently, the committee will not write those letters or let a student apply to med school if they don't have a certain GPA or mcat scores. It's interesting, because they are trying to keep up the number of accepted students from their school, but it's unfair for some of the students I think, because that committee can't say whether a student's chances to get into professional school is a clear yes or no, and they are reducing the chances for some students if they outright refuse to write letters for them bc of their gpa and mcat score, it's not so clear cut when it comes to a student's potential to get into a program since different schools look for different things. Isn't that weird?
