probably steel reserve malt liquor, its technically beer. the combination of high alcohol content and cheap ingredients just leads to a horrible taste, bordering on hairspray. the fact that its most commonly found in the infamous 40oz containers doesnt help as by the time you are halfway through its warmed up quite a bit really letting the fusel alcohol flavors shine
if we are talking plain beer i would say keystone ice outta the can. the stuff has a taste that i struggle to describe, like rotten aluminum birdbath water.