Blue Tusk and Empire Brewing Co are the best ones in Armory Square. The Tusk has an excellent selection and Empire does a pretty good job of making high quality, accessible beers. Syracuse Suds isn't worth going to. Also, you should check out Middle Ages Brewing Co, not far from Armory Square. They brew mostly English styles, though they have some very good hoppy beers. Beast Bitter, Impaled IPA, and X Anniversary IPA are a few to look out for. Also, Ithaca brewing Co is always on tap at the Tusk and their Flower Power IPA is one of my favorite IPA's, one of the best in the country IMO. Ommegang is also easily found on tap.