A listing of the top 10 pumpkin beers brewed in the United States(2012).  Great for the Holiday season.

1. Whole Hog Pumpkin Ale - Stevens Point Brewery
Handcrafted using real pumpkin and savory pumpkin pie spices with hints of all natural cinnamon and nutmeg. Perle hops balance with rich Munich, Roasted, and Caramel malts for the full-bodied taste and exceptional flavor. 7.5% ABV. 2012 Gold Medal Winner at the Great American Beer Festival.
 

 
2. Punkin' Ale - Dogfish Head Craft Brewery
A full-bodied brown ale with smooth hints of pumpkin and brown sugar. Perfect to warm-up with, as the season cools. Food Pairing recommendations: Turkey, roasted duck, lamb, stuffing, dessert dumplings. 7% abv. 24 ibu.

3. Pumking - Southern Tier Brewing Company
Pumking is an ode to Púca, a creature of Celtic folklore, who is both feared and respected by those who believe in it. Púca is said to waylay travelers throughout the night, tossing them on its back, and providing them the ride of their lives, from which they return forever changed! Brewed in the spirit of All Hallows Eve, a time of year when spirits can make contact with the physical world and when magic is most potent. Pour Pumking into a goblet and allow it’s alluring spirit to overflow. As spicy aromas present themselves, let its deep copper color entrance you as your journey into this mystical brew has just begun. As the first drops touch your tongue a magical spell will bewitch your taste buds making it difficult to escape. 8.6% abv
 
4. La Parcela- #1 Pumpkin Ale - Jolly Pumpkin
Packed with real pumpkins, hints of spice and a gentle kiss of cacao to lighten the soul. An everyday easy way to fill your squashy quotient. Only available for a few short months. Not to be missed.

5.  Terrapin Pumpkinfest  - Terrapin Beer Company
‘Pumpkinfest’ is a traditional Octoberfest brewed with over 1 pound of pumpkin per barrel along with pumpkin spices. All of the malt of a German Fest beer and all the spice of Grandma’s pumpkin pie!”
 
5. Ichabod Ale - New Holland Brewing Company
Ichabod combines malted barley and real pumpkin with cinnamon and nutmeg in a delicious and inviting brew.

Ichabod pairs well with autumnal foods such as poultry and root vegetables. After dinner, try it with your favorite dessert. 4.7% abv.
 
6. Post Road Pumpkin Ale - Brooklyn Brewery
The smell had aromas of malt and spices. The taste had a full malt body, a medium hop profile, and a bit of pumpkin flavor. Also present, especially towards the aftertaste were many spices. Detected at least cinnamon and nutmeg, and perhaps some ginger as well. 
 
7. Imperial Pumpkin - Weyerbacher Brewing Company
This 8.0% ABV pumpkin ale is the mother of all pumpkin ales. It is heartier, spicier, and more “caramelly” and “pumpkiny” than its faint brethren! We have added lots of pumpkin along with Cinnamon, Nutmeg and a touch of cardamom and clove giving this beer a spicy, full-bodied flavor. This truly is an Imperial Pumpkin Ale.

8. Pumpkin Lager Beer - Lakefront Brewery
Pours a light orange with an off-white head. Flavors of cinnamon, nutmeg and cloves meld well with a slightly sweet background that actually does taste a bit like pumpkin. Caramel and Munich malts reinforce this beer's mouthfeel and lend to the malty sweetness.

9. Pumpkinhead Ale - Shipyard Brewing Co.
Butterscotch was present in the aroma and very noticeable in the taste. Some nice pumpkin is also present but in a very creamy way. Kind of a mixture of Cool Whip and pumpkin paste. Not a lot of spice is present but sweet malt is. A bit of toffee and vanilla come to mind.
  
10. Saranac Pumpkin Ale - Matt Brewing Company 
Saranac Pumpkin Ale is brewed with Pumpkin, Cinnamon, Allspice, Cloves, Ginger and Vanilla. Look for a full-body and amber color. We're sure you'll enjoy this special brew! 5.4% ABV. Malts: Maris Otter, Wheat. Hops: Cascade Hops.