the difference is that a burner allows for a custom shaped fletch and the burning part has lotsa stinky smoke, while the chopper limits to s very specific feather shape, no stink, just the smacking noise of the chopping blade.
i've burnt fletchings for decades, now i just prefer to chop. either will get the job done.
for burners, the young is the defacto standard.
for choppers, they all get the job done - dunno about the bear paw, but the german vario is Superb. i use a vario as well as a few li'l choppers.