Again I know this is an old thread but some of my favorite local breweries have gone unmentioned.
Wolverine brewing is excellent and has a pretty diverse tap selection. Especially great lagers IMO.
Corner brew is good too, they are the sister bar of Ann Arbor brew Co. and technically they're in ypsilanti, but that's really just the ext stoplight over. They have some common taps with their sister bar but the selection is usually better at this location. It's also a little more of a dive bar than Brew co. is.
Jolly pumpkin is good, especially if you like sours.
Blue tractor is awesome as well, once upon a time my office was right above their bar. *sigh* those were good days.
Look me up if anyone is coming to town in the future. Happy to play tour guide