Well that was quick--we have a winner in the least impressive contest: Rolling Rock. As Hoagieman points out, we now have New Jersey water in what was once Latrobe's great summer beer.
I grew up associating "Jersey Fresh" with Joe Piscopo's Saturday Night Live sketches as the Jersey guy. New Jersey gets a lot of abuse from people in the neighboring states. It's a fine place with great people and maybe the water is good for some things.
But it's not good for Rolling Rock. I could tell something was wrong right away. It tastes different. The difference is subtle but real. And knowing more about how this is probably not just a bad batch, I won't buy it again.