Always a good topic, Flyer.
I try to stay away from pilsners as they can turn somewhat skunky. But a good, chewy pale ale really gets my cockles up.
A local brewery, Summit, makes a good one, and Sierra Nevada Pale Ale is also up top. The hoppier, the better, I say...
Guiness is a good bet but I'm usually limited at one, since it seems to fill up my belly rather quickly. A more common dark choice that currently (albeit temporarily) resides in the 'ol beer fridge is Michelob Amber Bock. I've loved the stuff since it came out (around the early-nineties, I'm thinking) and still enjoy it.
Call me a snob, but I spit on main stream brews like millerbudpabstbuschcoorskeystone. Squirrel piss, all.
Have a good one.