I'd easily place Goose over Sam when it comes to most 6-packs or on tap. I like Sammy, but just think Goose wins in a side-by-side. Then again, I live in the area and get them pretty fresh. Goose's Christmas and Oktoberfest are must-buys when they are out. I like their IPA and Oatmeal Stout, too. Sure, there are a lot of better 6-pack beers on the shelves (like Great Lakes, Bell's, North Coast, Sprecher 4-packs, Three Floyds), but I can't knock GI or Sam, especially when one is on sale.
Goose Island 6-pack bottles are twist off.
Of the mixed 12-packs, I'd pick Goose. The exception would be Sam's winter 12'er, if only for the Old Fizziwig Ale, which can only be found in these 12'er htis time of year.
And yes, Three Floyds is damn good stuff. WTF are you waiting for?!
When it comes to IPAs, their Alpha King is very tough to beat. They recently opened a brewpub at the brewery
that is supposed to be a fine place. I have it on my short list of places to visit before the end of the year!