I think this is purely a style preference, but I want to confirm (and settle a debate amongst colleagues). In general, is it better to use:
Antioch, Oberlin, and Boston Colleges.
-or-
Antioch, Oberlin, and Boston colleges.
On another forum, I found that the AP would choose the latter in the case of lists of things like rivers and mountain ranges -- I assume the same goes for lists of things like academic institutions. I can't find a style guide that advises the former, but it's nearly impossible to find results on Google that answer the question (I'm not even sure what to put into the query..."capitalization of a series of proper nouns" doesn't do it).
Thank you in advance.