I would say that the most common hunting rifle in .30/06 would be the Browning BAR. I love mine, it's a MkII Safari w/BOSS, chambered in .30/06. It's an extremely well made gun and holds considerable sentimental value for me.
Because it holds such sentimental value, I will be retiring it from active hunting use very soon after 10+ years of hunting everywhere from Mississippi to Alaska. It will be bittersweet because I will always remember the great times I've had hunting and shooting with this gun with my Dad, but I know that relegating it to "safe queen" status will preserve this gun in it's current (near perfect) condition for my son and his after him.