I have owned Leupold, Burris, Nikon, Zeiss, Swarovski, Schmidt and Bender, and Nightforce. Hard to beat S&B with Swarovski close behind for optical brilliance. The current line of Nightforce NXS is still my favorite for several reasons.
I have Leupold on several rifles and I like them. They are good scopes for the money. I have had problems with a couple of Leupolds, but they have a lifetime warranty and Leupold will fix about anything for free. Their turn around time is really fast. If I was looking for something for long range hunting and didn't want to spring for a NXS, U.S. Optics, or the like, I would get a Vari X-II in the magnification of choice and send it off to Premier Reticles for a custom reticle and a target turret for elevation. For a few bucks more a Mark IV with a custom reticle would rock.