Warren,
Oh, believe me, the 308 was going to be discussed, along with dozens of other calibers in times to come. I own a couple of them. One thing, when comparing the "closeness" in 308 and 30-06 that often gets overlooked is the following:
The heaviest factory load for a 308? 180 grain.
The heaviest factory load for a 30-06? 220 grain
The maximum velocity for a 308, 150 grain (factory)? 2820fps
The maximum vel. for a 30-06, 150 grain (factory)? 2920fps

They are certainly close, but hardly the same. At ranges I have to "ambush" whitetails on my lease (500 yds. or so) that extra 100 fps starts to get into the realm of a clean miss verses a kill shot.
I'm not putting the 308 down. I like 'em alot. With handloads they can more than duplicate the 30-06..."BUT" (There comes that word again),with handloads, a 30-06 is a 300 H&H Magnum! It goes on and on. Both are good. My "go-to" is always going to be the '06.
Best, Capt. Chris
P.S. The medium 308 action is easier to operate, "quickly" from the shoulder. Not "lock time", but "bolt time"...Of course: We don't "really" ever get (nor need) a second shot...or do we?...CCS