I too am headed up there as well in just about 10 days! Based on a bunch of research, as well as personal preferences (I'm more of a malt-head than a hophead), I plan to visit the following, in approximately this order of preference, and my own reasons provided:
Brassneck Belgians, stout, porter
Storm unique, not sold but accept donations, sours, stout
Powell Old Jalopy EPA, porter
Strange Fellows Belgians, saison/grisette!
33 Acres schwarz, selection
Steamworks pilsner, Flagship IPA
R & B oatmeal stout, ESB
Parallel 49 Scottish, Ruby Tears amber
Doan's Craft (DC) lagers & ryes!
Main Street Belgians, stout, brown ale