Thanks for starting this poll, Lynne!
I realized when filling it out that I tend to prefer plainish donuts. That is, the aspect of something being a donut in and of itself supercedes the need for any need for further flavor embellishment -- with two important exceptions, blueberry and pumpkin.
In the spring/summer, I'll eat just about anything blueberry, and in the fall/winter, I'll eat anything pumpkin
Other than that, the less fussy stuff the better. No jimmies, no frosting -- especially no chocolate! even though in other contexts I love chocolate.l I did make an exception for Boston creme.