If given a choice between a guinness (which I like an awful lot actually) and a PBR/Miller/Bud/whatever I will always choose a guinness. I dont think I can agree with you personally on that one.
If given those choices only I like to choose wine or some whiskey or something. Unfortunately in a place only serving those, the other booze is pretty low quality too. Going to a friends house I usually bring homebrew or pick up a sixer of something on the way over. I never grew up liking Guinness or having my parents drinking it so I guess I'm just not into it.