I haven't played T/F in a number of years, but it's hard to compare it to Aronimink for the brute length comment others have already made. Aronimink's tree removal was, as Dave points out, massive, and those that remain (most notably on 7 and 18) serve those holes well IMO.
What should also be mentioned about Aronimink is the just how spectacularly maintained and consistent the course is under John Gosselin.