I'm partial to a Guinness, Gene, and Fullers (a London brewery) but like to drink a variety really.
Alton, the local town, brews Carlsberg under licence, and is now owned by Coors! Are they American or Canadian? I can never tell the difference.....;-)
Right now you can get some lovely bottled ales in the supermarket:- stuff like Theakston's Old Peculier, Spitfire, Hobgoblin, Bishop's Tipple......there now, I've started salivating and dribbling on the keyboard.
The best brews are Welsh of course...Felinfoel's Double Dragon and Brains SA (Skull Attack!!)