OP said comfort... Ariat
I own 3 pairs of Ariats good boots as well.. but they are not the most comfortable boot I own.
My everyday boot is a double H..I can't find a more comfortable boot than that.
Ariat/Lucchese are very close as far as comfort for me.
But everybodys feet are different and they should try on as many boots as possible to find the one that fits them. Kind of like shopping for a pistol.