Jeez, you guys. I've lived in Seattle since I left Boulder (2005), but I get back to CO (and visit breweries there) with some frequency...the lack of knowledge in the WA scene (you're judging us on elysian, for chrissake?) is a bit surprising, but I guess makes sense. lots of great beer but we keep it to ourselves more. ;-)
Holy Mountain is amazingly and consistently excellent across so many styles. Bread and butter is mixed fermentation saisons, but worth waiting in line for fruited sours, knock your socks off barleywine, BA stouts, and then just occasionally release a world class IPA.
Fremont's barrel program is absurdly good (B-Bomb and variants, KDS and variants, Brew 1K/2K barleywines) and not that hard to come by. Also make my favorite fresh hop beer, cowiche canyon. (fresh hop season is amazing, and plentiful here...) Core beers are solid as well.
Skookum is a local treasure trove of delicious hazy IPAs, knocking them out one after another.
Cloudburst doesn't do much of the haze craze, but another place pumping out delicious IPAs.
Engine House #9 for great sours.
Reuben's, Bale Breaker, Stoup, Three Magnets, Matchless, Seapine... Georgetown for a bigger place doing good work.
Some pretty awesome beer in CO (I like Casey, Crooked Stave, Black Project, TRVE, Weldwerks, Avery...) and greater volume for sure, but don't be sleeping on top shelf WA beers. (As a sidenote, the proximity and access to the Portland scene (Great Notion, de Garde, Upright, Cascade, etc. etc.) is pretty awesome as well.)
And now that I feel dirty a little due to the upcoming game and my defense of WA..... GO BUFFS! ;-)