Experience for what purpose? Just hauling meat, moving camp, hunting with the pack on?
I have a Cabelas frame. I use it with various bags to carry in/out base camp and meat. I stuff my sleeping bag into a day pack and lash everything to the frame. Once in camp I use the day pack until it is time to leave. The Cabelas frame will carry a ton on stuff but is squeaky, and doesn't ride as nice or tight to the body as an internal frame. It is a comprise and works fine for how I use it. The straps could be better. The Kelty is about the same in my opinion. No idea about the Alps.
