Not sure where in PA you are, but if you are in the Western part, adding Ohio to the mix could really open things up for you. If not interested in partying, Dickinson is probably the best choice from your list. Muhlenberg and Ursinus are two less selective schools that are popular and Allegheny, mentioned above, is certainly worth a look.
Lehigh, Bucknell, and Gettysburg all Greek life and strong party cultures. At Lafayette and F&M, it may be easier to build a life without that although it is certainly there.