By far and away stella. How can something liquid that isn't mercury be so metallic in taste?
Bud is a very close second, but it doesn't taste like metal which is always a plus.
Honestly, it's just metal in a metallic can!
Asahi super dry is also pretty rank.
I'm not a big beer drinker, cider is my thing but you can't go far wrong with a bottle of estrella.
(fyi, Magners, strongbow and so on do not count as cider. If its going to be mass produced Savannah dry and old rosie is the way to go.)