I don't drink very often (maybe a beer/drink every month or two) but....
Relaxing Smooth/Summer beer = Boddingtons, Wexford, Beamish
With Pizza = St. Peter's (organic or golden), Paulaner Salvator Doppelbock, Blue Moon, Anderson Valley Poleeko Gold Pale Ale
With strong meats/food = Samuel Smith's Oatmeal Stout, Stone Double Bastard, Great Divide Oak Aged Yeti Imperial Stout
Amazing beers that will totally blow your mind if you're a connoisseur (and if not, you'll likely hate) = Dogfish Head World Wide Stout, Westvleteren, Delirium Tremens, Kate The Great - Russian Imperial Stout, Founders Kentucky Breakfast Stout, and lastly - the great Samichlaus, which tastes more like a cognac than a beer.
+763578246278 on Westvleteren. It's very hard to get though. The monks of Westvleteren sell all it alsmost exclusively at the gates of the abbey only. And one of the terms is only one case of beer per license plate. You have to call to make an appointment, the monks write down your plate number and you can only pick up your case on certain days of the week. Even the best known beer taverns in Belgium like Kulminator in Antwerp, don't always have Westvleteren on stock.