If you're on Mill and looking for the best selection of beer, you have to check out Handlebar. They've got the best staff in Arizona, and work hard to have a constantly refreshed menu of draft and bottled craft beers. If you've got a specific taste, it's likely that they'll find something you like from a local to a rare brew.
There's a full bar and a menu of good bar snacks. Have to shout out to the fries with plenty of sauce options, the beer cheese, and the mini pretzel chicken pesto sandwiches that are amazing!
One of my favorite places in AZ, and a great place to hang on Mill!