Anymore, the U.S.is literally crawling with breweries that are equal to or superior to anything the Euros can make. And there's probably one near you.
BEER - Think global. Drink local!
That really depends on the style. Americans definitely make the best hoppy ales--but subtler more delicate lagers are a different animal.
I cannot say I've had too many excellent German or Czech style pilsners made in the USA. It's not fair to compare them to the European stuff shipped here either, as pilsner spoils quickly, and the Germans or Czechs never drink anything more than a couple weeks old; German or Czech beer you get here is nearly guaranteed to be at least 6 weeks old from the hold of a ship before you drink it--and, the big brewers use dumbed down beer recipes for import to the states too.
Bottom line, pilsner DRANK IN Germany or Czech (or Slovakia for that matter) is amazingly good--and few American micro-brewers can match them for that particular style. If you ask a German or a Czech person in the USA too, they'll tell you the same thing.
Sam Adams latest "Noble Pils" though may well have done it, IMHO.