I'd put together a reply last night but evidently changed my mind (or it's hiding around here somewhere).
I very much prefer Stihl bars. I understand that for some reason Stihl Canada deals in Stihl-branded bars made by Oregon in Canada. Maybe the bar that large isn't available that way and must be imported from Germany at a big hit for shipping/duties, etc. Our bars down here in the USA are German made.
Even if the solid replaceable nose bars weren't made better (in my opinion and experience) than the others, the availability of the 13-tooth nose sprocket, with the greater radius that provides, is worth a bit extra for me. The performance while boring with those is better by quite a bit. I haven't handled any Cannon bars, so can't properly include them in either comparison.
Good tools don't cost you money, they make you money.
Glen