The breweries in the US are producing more and more quality beers on a can. And people are getting to understand that a beer on a can is just not a poor macro beer like a bud or similar.
My US-canned beer experience is still not so big but it is increasing so much lately that I have decided to create a top list. So here is my contribution;
1. | Oskar Blues Ten Fidy Imperial Stout |
2. | Oskar Blues Dale's Pale Ale |
3. | Maui Brewing Big Swell IPA |
4. | Butternuts Snapperhead IPA |
5. | 21st Amendment IPA |
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UPDATED 090812
Removed and added 2 beers, the 21st IPA and the great IPA from Maui.
UPDATED 071225
Picture of the new IPA at Oliver Twist in the form of a IPA on a can;

UPDATED 071125 Seems the Darkness from Surly as a canned version was only in my dreams (but a good one).
So I have reordered and put in the IPA from Butternuts that I am 100% sure is a canned beer and something I have sampled a couple of times over at my local pub. They also has a pale ale in the form of "Pork Slap"!