Is that a trick question?

For my money, Super One is the best all around doughnut purveyor - depending on the location. They make what is the Twin Ports finest cake doughnut. They used to able to make a raised (or yeast) doughnut, but no longer. Even in Superior they seem to have lost the magic. Years ago, it was, occasionally, a good idea to buy the "Texas Doughnut." Nowadays, its only for rubes. 

Mount Royal Fine foods couldn't make a doughnut worth eating if its petit-bourgeois veneer depended upon it. 

Twig Bakery makes the most disgusting baked goods this carbo-sweet perv has ever consumed.

On the bright side, World's Best Doughnuts in Grand Marais is very good. Almost worth the drive alone. It's all about the lard.

Cub foods does sell on occasion donuts with vanilla cream inside. 

For being so close to Canada and all, Duluth is very disappointing in the donut department. On the other hand I might weigh ten pounds more if I passed 3 Tim Hortons on my way to work as my commute for my pre-Duluth gig did.

Johnson's Bakery in Lakeside has decidedly mediocre donuts, I'm sad to say.  I like that place, but their donuts are not a major draw.

Kerc has struck gold, inadvertently.  If you have about a million dollars laying around, here's what I want you to do.  Buy a Tim Horton's franchise.  Put it in the old Ground Round building.  

1) Duluthians and other area residents will flock, because Tim makes a fine doughnut and not bad lunch, either.  And the coffee is good enough that we have relatives in NY ship it to us. 
2) It's in the major shopping corridor, which is usually populated with lots of Canadians, who understand Tim and will patronize it.

Should you, yes you with the million dollars, go ahead with this plan, be content in the knowledge that I will purchase chocolate angels like they're going out of style, and I will charge only a small consulting fee for having come up with the idea.

I support this Tim Horton's plan provided that a "No Québécois" rule is enforced. Or, at least, a "No Speaking French" rule. I've spent way too much time waiting in line at Timmy's in Deep River, ONT.

Really, most baked goods around here are not well made. Some are good, to be sure,  but there's very little excellent bread in town, if any. Donuts included.

The best bread at the coop comes from Ashland or the Twin Cities. The bakers in Duluth have a huge problem with texture... what is with this?

Mmmmm, Amazing Grace does great Classic French bread.  Too bad they don't make doughnuts.