I think the 30-06 is the most versatile as a hunting cartridge, especially if you might go after something bigger than deer. Depending on your definition of "lots of range time," recoil with the '06 might be a factor after a while.
All the cartridges that you listed are good ones. I'd pick the 30-06 if it was to be used more for hunting, or the 7-08 if you're going to use it at the range more often.