Obviously Heineken and Corona will ALWAYS take #1 and #2.
I think Blue Moon is charging for the top of this list, too. Too many Joe-Six-Packs are starting to get behind it and proclaim it as the greatest beer ever. I think it's "meh" without the fruit, and "bleeeecchh" with the fruit.
Harp has to be up there. It's strikingly mediocre and should not command a premium price.
Magic Hat is 90% marketing, and most of what they make seems like someone was focusing too much thinking up names and packaging art and not doing enough tasting. But they do turn out some good ones from time to time. I think Roxy Rolles is a good beer.
Stone Brewing Company has some overrated and overpriced beers. I think Double Bastard is one of them. I haven't tried too many of Stone's products lately so I won't write them off completely. I remember liking Ruination.
Sam Adams is a mixed bag. I haven't tried everything they make, but most of what I've had has been "off" in one way or another. Boston Lager is good when it's good, but I've had some bad BL from time to time. I remember thinking Cherry Wheat was one of the worst beers I've ever tasted, and that's about when I stopped trying most of the other SA products.
I will defend Yuengling because it is palatable (not great, but good for a football beer) and it's FRIGGING CHEAP! How can $15/case be considered overpriced, even if it tastes just marginally better than the BMC/30-pack beers? (As an aside, I find the canned Lager actually tastes better than the bottled stuff most of the time.) Another aside-- the reason why Yuengling is still able to claim being the "oldest" is because they are the oldest one of the few who didn't shut down at any point during Prohibition. They stayed alive making near-beer and other products.
Back to the topic at hand...
I have throw the BS flag on most of the people who say "anything by Dogfish Head". To make such a statement, you have to have tried everything they make, which is damn near an impossible feat unless you live near one of the DFH brew-pubs and go there regularly. There are LOTS of different offerings throughout each season and they are all over the map as far as style, flavor, and even pricing. Some are good, some are not, and some are just so strange I can't really make up my mind. I can handle people who knock the 90 minute and 120 minute (the prices are VERY high, even if you like the stuff.) My pet peeve with DFH is that often, by the time I get around to trying one of their seasonals and discover I like it, it's nearly sold out for the season.
Living with PA's beer laws also makes it hard to get small quantities at a decent price, which is a big part of my problem. I do like the Indian Brown Ale and the Raison d'etre, which are always available by the case at what I consider a reasonable price. I had a sampling of Raison d'EXTRA at Winterfest and it was quite tasty, but I don't know if I would pay their price for it.