A research project for you - go to a bottle shop, buy a dozen different small bottles of beer. (330mL or so) Try to get as broad a cross section (styles, colours, country of origin) as your budget allows. Sit down with a few friends and a large supply of small glasses and split each bottle between you. Start with the Pilseners, lagers, wheat beers, etc, progress through pale ales, browns, and end up with the IPAs, stouts, etc. If you have any Belgian beers in there (eg trappist) have them before you're too hammered, and savour them. Try to figure out what you like about each and what you hate about each. Come back and tell us whether all beers are still the same to you.