This Top Ten Märzen / Oktoberfest Beer List is from America's Best and Top Ten and the 2011 U.S. Open Beer Championship.
  
1. Saranac Adirondack Lager - F.X. Matt Brewing Company
2. Capital Oktoberfest – Capital Brewery
3. Numbskull Oktoberfest - Lexington Ave Brewery
4. Paulaner Oktoberfest - Paulaner Salvator Thomasbraeu - Germany
5. Left Hand Oktoberfest - Left Hand Brewing - Colorado
6. Harpoon Octoberfest Beer - Harpoon Brewery 
7. Great Lakes Oktoberfest - Great Lakes Brewing - Ohio
8. Dogtoberfest - Flying Dog Brewery - Maryland
9. Bell's Octoberfest - Bell's Brewery - Michigan
10. Brooklyn Oktoberfest Beer - Brooklyn Brewery, NY 
   

    
Märzen/Oktoberfest
Märzens are characterized by a medium body and broad range of color. They can range from golden to reddish orange. Sweet maltiness should dominate slightly over a clean, hop bitterness. Malt character should be light-toasted rather than strongly caramel (though a low level of light caramel character is acceptable). Bread or biscuit-like malt character is acceptable in aroma and flavor. Hop aroma and flavor should be low but notable. Ale-like fruity esters should not be perceived. Diacetyl and chill haze should not be perceived.
OG: 1.050-1.060
FG: 1.012-1.020
Alcohol by Weight: 4-4.7%
IBU: 18-25
Color SRM: 4-15