Best beer I've ever had, Firestone Walker Parabola. Holy shit.
Lagunitas Wilco Tango Foxtrot was pretty good.
So is their Hop Stoopid.
Another good one was Deschutes Brewery Abyss.
I had some really really good ale back east in Belfast ME, I think it was like Marina Brewery or some shit, but it was amazing.
Russian River Brewing Company makes some damn good stuff.
Sierra Nevada Summerfest is pretty alright.
Whenever I can get someone to grab me some Sierra Nevada Bigfoot I snatch it up.
Sierra Nevada Stout is meh, I know a lot of people who like it, but I'm not a big fan.
Just about everything made by Bear Republic Brewing Co. is amazing. Racer 5 and Racer X are like, oh my holy shitballs. Red Rocket is pretty nice too.