We try to drink (mostly) local beers (and wines), and we’re fortunate enough to have some great breweries in the area.
My list of favorites/regulars:
Sierra Nevada Pale Ale (Chico, CA) - A staple in our house. My co-worker and I call them ‘greenbacks.’ Our everyday beer. Great taste, refreshing, easy to find, even on tap, and reasonably priced. I honestly can’t believe we have never driven out there to do a tour. That’s going high on my weekend trip list.
Eye of the Hawk (Mendocino, CA) - We usually pick up a 6 pack or two every now and then, and almost always when we go camping. Since half of our cooler is usually filled with beer, a couple of six packs of Eye of the Hawk (with 8% ABV) saves a little space (one beer almost equals two!) - tastes great, and packs a nice punch.
I actually like all of Mendocino Brewing Company’s beers, the Red Tail Ale and the Peregrine especially. We drive up to Mendocino a few times a year and always make a stop at the brewpub.
Pliny the Elder (Santa Rosa, CA-yay!) - Our absolute favorite. Super hoppy. The brewpub is just a couple of miles from our house and is our regular hangout here in town. Most of the beers at Russian River Brewing are excellent, I don’t think I’ve had one I don’t like. Their Belgian, Damnation, is now available in bottles and is my second favorite of theirs. They also make a triple IPA, Pliny the Younger, that they don’t always have on tap, but is mighty fine as well. My husband and I know a night out at RRBC usually ends with a cab ride home. They make some strong (and really delicious) beer!
Other favorites from this area include Red Rocket Ale, Red Seal Ale, and Lagunitas IPA. All really good and end up in our fridge or cooler or pitcher every now and then.
Guinness is high on our list, but it’s just so filling. Usually reserved for our nights crawling the Irish pubs in SF (usually accompanied by Troy McCLure SF.) 
Dos Equis Amber is my favorite Mexican beer and one I’ve been having once every other week or so since a taqueria opened up across the street a few months ago.
I had a Boddington’s on tap for the first time last week and loved it. A new favorite.