Awesome topic, where to start.
I'll second the dogfish head IPAs 60, 90, 120 are usually a good bet
is always awesome
(a local wisconsin brewery) is top shelf
Moon Man, Stone Soup, Coffee Stout are my favs. I just finished my second bottle of their limited special, "Enigma" which is a "wild yeast spontaneously fermenting a rich treasure of malted barley and cherries in unlined oak casks" this tastes more of a gueuze
than a beer, but very drinkable.
love anything from http://www.ommegang.com/
and you can't go wrong with 3 floyds
alpha king ipa or any of their outstanding barrel aged concoctions
okay, I'll stop there...
EDIT: wait one more, almost forgot my favorite beer!
Bell's Two-Hearted Ale!