Right after the Euro got into circulation we suddenly got access to all kinds of imported beers. I kinda went on a binge then, sampling everything I could get my hands on. Imports have decreased since, but there are still many good ones to be found. The point of this intro is that I really developed a taste for fine beer, to point where I can't stand what's currently available anymore. If it comes from a tap at a bar, it's awful to me. If it's available at the supermarket, it's generally awful to me. I really began having the need to import them myself or use specialized stores (thank the Internet for that).
So my favourites: I found that I generally prefer Ales to Lagers, so not a lot of yellow stuff here. Chimay Bleu remains my all-time easy access favourite, and is, so far, my pick among the Trappists, although I'm quite fond of La Trappe Quadrupel. I generally like strong Belgian Ales, dark in colour, rich in alcohol. My favourite low-alcohol beer is probably Sierra Nevada IPA, but it's really hard to get around here, as is my favourite black, Anchor Porter (they are both from the USA).