My last few were
DFH Black & Blue
Trappistes Rochefort 10
Delirium Nocturnum
I'd had the last 2 before though
The black and blue was nice for an occasional beer.. nice tart from the berries, well-carbonated, nice and crisp malt, not much alch taste for being 10pct abv.. just a little.. a bit overpriced though
the trappistes rochefort is one that I go to every now and again, very well balanced beer, one of the 7 trappist monk breweries in the world (think Chimay if you're not familiar).. flavor has a lot of "winter weather" components like figs, raisins, a little nuttiness, a bit of malty sweetness, the head lasts awhile like any good head should
.. I've never tried the 8 or the 6 (diff alch levels, the 10 is 11.2 I think) though, but no big reason to, plus the 10 is easier to find.. all around a great beer
by now pretty much everyone has tried nocturnum I believe, got it to split with a friend who had only tried the tremens