I've got a few Li'l Choppers, a Vario in Trad Parabolic and a well-used Young Feather burner. I'll take the feather burner any day, stink and all. The feather shape can be infinitely customized and the burnt shape is perfectly uniform.
I have a large turbo fan set up in front of my basement shop window and that does a pretty good job of clearing out the burnt feather smell - it pays to leave the fan running for a good ten minutes after all the burning is done.
Ya hafta be real careful, and lucky, to get a pair of 4-1/2" feathers from the average full length feather. I use a 75x105 four fletch exclusively for all my arras, hunting and roving, and easily get a pair of 4" vanes from one full feather.
Four 4" feathers is a heckuva lotta steerage for even the heaviest of arras and biggest of broadheads. I use a modifed shield feather shape, Bohning tape and a dot of Fletchtite on the ends of each feather - they're near impossible to come off.