Having read the whole thread, I think that there is one, vile brew missing.
The absolute worst beer I ever had was something found in the South. "Dixie" it was called. It was rumored that they cut it with embalming fluid, but it didn't taste that good.
I have had Iron City and I thought it was strange tasting and probably toxic.
Who dat say day gonna beat dis beer? Who Dat? Who Dat?