You can certainly make a good argument for Belgian beer being the best in the world. I, personally, would make the case for the US, for its huge range, innovation, resurrecting forgotten styles of beer, and quality.
I tend to like either hoppy styles of beer (like IPAs) or really dark, malty styles of beer (porters, stouts, bocks, etc.) so Belgian beers don’t really fit my style. However, every once in a while I have a craving for a yeasty, spicy Belgian abbey ale or a crisp, stinky, sour unflavored lambic.
The types of styles the Belgians make, they absolutely excel in. Witbiers, Flemish brown ales, lambics, abbey and trappist ales, saisons, etc. If those are your styles and tastes, I’d say Belgium is most definitely the beer country for you. For a country its size, it’s got a wonderful diversity of beer and all-around high quality. And purity laws be damned. A whole mess of shit can go into Belgian beer, so I give Belgians credit for expanding the definition of beer and experimenting.