Beer definitely. Wine on occasions - good NZ Savignon Blanc, or Pinot Noir - love the French Bordeaux - have had the chance to try some really good ones in my travels :)
As far as spirits go - am normally a bourbon and coke drinker - but got the chance to visit Catalina a few years ago. Introduced to frozen margaritas by one of our clients. Had the best day - sitting in the sun - listening to a live jazz band, and proceeding to get horribly burnt, and very 'merry'.
Next day was painful - head, and sunburn - but totally worth it. Whenever I go back to the States now, I always end up having at least one margarita. Great memories!