Of the American beers, Budweiser certainly seems to be the most popular.
It because its the largest selling beer in the US and available in over 80 markets worldwide.
Really? What other beers sell well in America?
The most popular imported beer in America is Corona from Mexico.
Corona is refreshing. What sorts of beer do your prefer?
I like the new craft brews that have exploded in the US, but my favorite is probably Belgian Beers.
I like those too, but it seems that Budweiser just keeps going, maybe because of its history. Has it been around for a long time?
It was created in 1876 by Carl Conrad & Co. of St. Louis, Missouri.  
So that has been a while. Didn't German immigrants start the company?
Correct,  Adolphus Busch and his friend Carl Conrad developed a "Bohemian-style" lager in the United States.