Best beer I ever drank for me has 2 entries. Well, more like most memorable.
1. 20 years ago I went fishing in Alaska in a remote location (i.e. float plane in, "see ya in 6 days", float plane out) with a buddy of mine. We packed some whiskey, but the weight restrictions didn't make loading up 6 days worth of beer feasible. It was a great trip, but exhausting, and we were stuck for an extra day due to weather. We got back to Ketchikan and took the best shower of my life, then went to a local spot for some fried halibut sandwiches and about the coldest, most refreshing beer of my life. I have no idea what it was, and it really didn't matter. Something hoppy.
2. 5-6 years ago went skiing with a different buddy. Had a great day, very few breaks, and we were freaking worn out. We went into a local pizza joint and they had Pliny the Elder on tap. I had never had it, but had heard of it. That first sip was magnificent. Not just the taste of the beer, but the shot of adrenaline it gave me. We camped out for about 3 hours and got shit-can hammered and ate an entire pizza each.