Guinness for us Dubliners, Murphy's in Cork. I find Guinness a much smoother stout, and that's not a Dublin bias just personal taste. Murphy's has a more bitter taste to it, hints of coffee on the swig. But certainly drinkable, Beamish is so-so but is popular in both cities due to it's lower price point. There are a few other stouts available, but generally they lack consistency served on draught. Notable exceptions are 8° brewing company, they do a nice chocolate stout, but it's almost impossible to find it on tap, Galway bay/ Porterhouse oyster stout is a decent brew also and can be found in quite a few places, and it's gaining an increasing foothold, albeit catering to a niche market, but distribution is nationwide at this stage. Last, and certainly least is Heineken's recent feeble attempt to get on the ladder with 'islands edge' ... Pig swill. Brewed in Leitrim st in cork city alongside Murphys and Beamish, whatever 'brewmaster' came up with the 'recipe' for that sewer water should be shot.