The Czechs love beer, but is it the best?:

Czechs and the millions of tourists who flock to Prague every year seemingly agree that there is something special about the local brews. The Czechs are the largest per capita beer consumers in the world, downing 1.58 billion liters last year. (That's 320 16-oz glasses of beer for every man, woman and child.)

That's a lot of beer, even if you factor in the tourists to the city.

If you go to Staromestske Namesti (Old Town Square) in the center of Prague you definitely see a lot of tourists sitting at the restaurants and drinking beer (even in winter). I remember one of the first times in downtown Prague wondering what Staropramen was and my wife telling me that it was a beer.

I am not the biggest of beer drinkers, but I have had Pilsner Urquell and have to admit that it quite a nice beer. But I guess "the best" is always a subjective term.