My tongue can't decide what kind of beer it likes. I don't know how many times I've tried a new beer to declare it Best Beer EVAR!!!...only to have it drastically shift flavors a few weeks later. Samuel Adams, Guinness, Dogfish head 60 minute IPA, Trader Joe's 2006 vintage Belgain ale. In some cases the shift is almost a 180, from fantastic to barely drinkable. Not a subtle Coke vs. Pepsi, closer to Coke vs. Dr. Pepper.
It is peculiar, because I can still remember the original taste--Dogfish 60 minute had a distinct grapefruit taste that I can't find anymore. It went from Best EVAR to barely above average.
Oberon seems to be my current favorite--I bought a six pack last week, and it is really good. There's hope--It isn't as good as my first bottle of Dogfish 60 minute, or Trader Joe's ale, but it is considerably better than average. Of course I find that it is seasonal, and the season is nearly over...And if I stock up, my tongue will change its mind again.