Clotworthy is a fine brew indeed. Belfast Lager is an odd one. It's lovely on draught, but utterly honking in bottles.
Mind you, I was in a spot in Dublin a few weeks back called The Porterhouse. They had their own stout, called simply "Plain", which had the advantages of a: Being beautiful, and B: allowing you to order at the bar by quoting Brendan Behan. I'll be having that, thank you.