Budweisser ist great, but not that cheap US copy. The real czech budweisser rocks.
Sorry guys, but Corona and all that stuff isn't really beer
I like Guiness, Kilkenny, Fosters, Newcastle Brown Ale ... those are the ones you probably know. But than, Schwabenbräu (Das Echte, Das Schwarze, Das Meisterpils), Augustiner, Prinzregent Luitpold, Rothaus Tannenzäpfle, Alpirsbacher Klosterbräu and much more. I am Swabian, so we have a lot of good beer here, still I have to admit that tose Bavarians have some good stuff, too.
There are some more nice beers around the world, the croatian Bockarev, Russian beer isn't that bad eater. And in Hungary we have our Soproni Ászok, Szalon Sör and Borsodi.
Come and visit me! I will show you around.