Rebel Yell used to be a Stitzel-Weller brand back in the old days.
It is owned by Luxco now, and until recently was contract made by Heaven Hill. Luxco has apparently opened a production facility of their own.
The Van Winkle brand is contract made by Buffalo Trace.
Many brands have changed owners and/or changed quality for better or worse over the years.
I've not bought any Jack Daniels since they started watering it, and the last bottle of Rebel Yell I had was pretty poor.
I'm far from a Bourbon snob, but there is simply too much good whiskey being made now to fool with the ones that have been cheapened to increase profits.