Well, there are so many different beers and so on........
But, I like Sandels, Karhu, Karjala. And from the foreign ones the best is Monty Python's Holy Grail! "Tempered over burning witches" or how did it go.. Well, anyway it's a good beer, but here it costs about 2.5 times the regular finnish beers price, so I have only bought one bottle of Monty. But it kicked ass.
And I must mention that the best IV A beer I've tasted is definitely Karjala. And the best IV B is probably Olvi Dobbelpock.
It's funny how I like Olvi Dobbelpock but I can't stand the regular Olvi CXX.
Well, maybe this post went a little too far..