2. Shock-top Pumpkin Wheat
3. Blue Mood Harvest Pumpkin Ale
4. Dogfish Head Punkin' Ale
5. Samuel Adams Harvest Pumpkin Ale
A lot of the local breweries around here also have great pumpkin beers that they brew seasonally but don't normally put into stores, which stinks because they're all so good and I wish more people outside of the area could try them. I've also noticed a lot of the locally brewed ones tend to be high gravity beers. My favorite out of the list above is Blue Moon's harvest pumpkin, that's one you'll find in my fridge right now.
Feel free to add an suggestions of ones you like, I love trying new ones!