There is a great difference between
- Guinnesss Draught
- Guinness Extra Stout
- Guinness Foreign Extra Stout
If you get a pint on tap, or there is a widget in the bottle, or it is out of a can, it is Guinness Draught. This is a session beer, normally too watery for my taste except if I want a session beer. Relatively low alcohol/calories. I often have it when traveling, since I seem to have a gift for packing on pounds when on the road, but my wife won't touch it. She is a die-hard fan of....
Guinness Extra Stout. A good beer - very nice mouth feel, thick/creamy, rich flavor. This is the standard that my wife and I brew against for my stouts. But it is exceeded in wonderfulness by....
Guinness Foreign Extra Stout. A hoppy ('bout 60), higher alcohol Extra Stout, just introduced to the US marked last October. I can make one of those 11 oz bottles last a loooong time - just sipping and enjoying the combination of tastes and the aroma. In my humble opinion (and somewhat limited expertise) this is the best beer I have ever had. Take that with a grain of salt - Guinness ES was the first non-BMC beer I ever had 30 years ago, and it has remained my favorite.
My recollections are now spread out 22 years from my last trip to Britain, but I do remember Guinness there being particularly good compared with most beers here, and a bit better than the US import market Draught.