I've reached the stage in life where I no longer view stout as medicine.
Guinness (draft only) is good, if drawn correctly. Out of a bottle, I've found nothing better than Young's Double Chocolate. Not sweet.
Though Yuengling has improved a lot, I've yet to find better lager in the U.S. than Sam's. And I agree that almost anything German is a treat.
But we had the good fortune to be in Belgium for a week summer before last, and it's the home office for "hi-test" brews, often double and triple the punch of ours.
And nearly every one has its own distinctive glass and pour technique. Mecca for beer lovers.