To each his own but I have used a 30-06 for years on dozens of deer, elk, antelope etc.
It seems to do just fine. More power with the mag but do you really need it? I don't believe so 99.99% of the time. Besides your gonna have more recoil, louder muzzle blast, higher cost of ammo just to name a couple of reasons in favor of a '06. The 30-06 was introduced 100 years ago and is the number one selling hunting caliber in the nation hard to argue with that kinda success.