I ran across an amazing beer while I was on holiday in Holland this week (I just got back today), called Amstel. It is vastly superior to anything else I've ever tried (though being 16, my experience is admittedly rather limited - most of the beer I've drunk has been in France/Holland, where I'm above the drinking age). In fact, I liked it so much, I bought a whole crate of it to take back with me - its so heavy, it takes two people to lift it.

Apart from that, I've always liked Kronenburg, its definitely a great beer, one of my favorites.