Here is a list of beers being served at the GAF this year in Oregon, OH. Last year, my favorite was the Weihenstephaner Tradition (a Dunkel on draft) which I've tried to replicate. Some are draft and some are bottles, which I wish they would specify. I've tried many of them, but let me know if there is a most try on the list.
1809 Berliner Weisse, Aecht Schlenkerla Marzen, Aecht Schlenkerla Oak Smoke, Augustiner Maximator Doppelbock, Aventinus, Aventinus Eisbock, Bayerischer Leipziger Gose, Black Cloister Hildegard Berliner Weisse, Black Cloister Helles Angel, Einbecker Mai Urbock, Engelszell Gregorius, Freigeist Geisterzug Gose, Freigeist Ottekolong Kölsch, Grodziskie, Monchshof Schwarzbier, Clausthaler Dry-Hopped Amber, Schneider Organic Edel Weiss, Schneider Weiss, Tucher Kristall Weizen, Weihenstephaner Festbier, Weihenstephaner Hefe Weissbier, Weihenstephaner Korbinian Doppelbock, Weihenstephaner Kristallweiss, Weihenstephaner Tradition, WUR Julius Echter Dunkel Hefe, WUR Julius Echter Helles Hefe, Labatt Blue Light, Bitburger, Hofbrau Dunkel, Hofbrau Hefe, Hofbrau Octoberfest, Hofbrau Original, Warsteiner Pils, Warsteiner Dunkel, Warsteiner Octoberfest, Warsteiner Brauweise, Warsteiner Konig Ludwig, Sierra Nevada Octoberfest, Ayinger Alt Dunkel, Ayinger Brauweise, Ayinger Dopplebock, Ayinger Jarhrund, Ayinger Octoberfest, Ayinger Weizenbock, Edringer Dunkel, Erdinger Hefe, Hacker Pschorr Weisse, Hacker Pschorr Munchen, Paulaner Hefe, Paulnar Lager, Paulaner Salvator, Paulaner Ofest, Warsteiner Pils, Warsteiner Dunkel, Warsteiner Grapefruit cans