I ride a Flagship, I love it. I have found it to be very easy to ride in almost all conditions.......its not the stiff scary beast some make it out to be. Keep in mind, its not a twin(duh) and its not meant to be a trick stick, what it is, is a really good do "most" anything deck. Pow=Good Groomers=Good Ice=Good......chunder and crud, eats it up....bit rough though. Park=Not so good.
The new Mtn Twin is soft, I wanted to add one really bad, ended up with a Signal Omni instead, same'ish camber profile and it is a set back twin, I love it! Just a bit stiffer than the Jones and I would think a bit more damp.
Hope that helps, like the other guy said....ride em both if you can.