But seriously, Guiness, but only on tap. It doesn't taste as good from the bottle or can in the US. However, the European brewed bottled Guiness is fine, but the St James Gate stuff is hard to find aside from specialty stores in the US.

But in the summer, I prefer the lighter beers. Mostly Mexican and Japanese beers. Dos Equis, Negro Modelo are my mexican faves (and corona is swill) and Soporro and Kirin do me well for the Japanese brands.