It depends on what establishment I'm eating at.
If I'm at Dunkin Donuts (and I only go there if I'm on a layover) then I go for an apple fritter.
If I'm at a local place called Sal's, then I go for a maple bar.
If I'm at another local place called Grayson's, I go for a hexagon glazed yeast donut.
Krispie Kreme in ATL used to have amazing cookies & cream filled donuts, but haven't seen them in a couple of years...but I remember it well.
I'm not partial to cake donuts or the old fashioned ones.