When you say hunting and target the 20x is out for "me". I have one 20x and wouldn't much like it for a hunting scope.
All I own personally is leupolds and one Ziess. They top out at 10x and work very well for "hunting" and playing around on steel. They gather more light than the 20x scope I own(Leupold) and still gives me plenty of x's to shoot 1,000 yard steel.
One thing to keep in mind is the ability to have a turret installed. For example you mention the S&B summit. It's out because a turret can't be installed unless that changed recently....
