Here is what's tough about a list like this.
#1 How much weight do you give to national brewers, state wide brewers, and nano brewers? From someone living in Iowa, Oregon is a terrible choice. There is one decent brewer(Deschutes) that brings their beer to Iowa and I wouldn't put their beer in my top 20 list. Where you have a place like Michigan which brings Iowa Bell's, Founders, and Jolly Pumpkin. You have a place like California that gives us Stone, Alpine, Lagunitas, etc and in the next few years could bring us Sculpin, Firestone Walker, AleSmith,etc.
#2 It's hard to summarize a whole state. If you live in the Des Moines metro you have a ton of excellent choices from national, state, and nano's. If you live in Cherokee, not so much.
#1 How much weight do you give to national brewers, state wide brewers, and nano brewers? From someone living in Iowa, Oregon is a terrible choice. There is one decent brewer(Deschutes) that brings their beer to Iowa and I wouldn't put their beer in my top 20 list. Where you have a place like Michigan which brings Iowa Bell's, Founders, and Jolly Pumpkin. You have a place like California that gives us Stone, Alpine, Lagunitas, etc and in the next few years could bring us Sculpin, Firestone Walker, AleSmith,etc.
#2 It's hard to summarize a whole state. If you live in the Des Moines metro you have a ton of excellent choices from national, state, and nano's. If you live in Cherokee, not so much.