The reason I like the 9.3 today is the current availibility of great top quailty factory ammo for it as compared to the .35 Whelen which is also a great cartridge. The .338-06 is also a great black bear round but with limited ammo availibility and it diserves a wider following when a magnum is not needed. Some people try to replace magnum power with shooting ability to place a properly constructed bullet where it should go with the first shot which never works out the way they hope.
I loved my .375 H&H, which was custom fited to me by a gunsmith friend of mine. It was more comfortable to shoot than my .30-06. It makes a world of difference when a rifle is set up buy an expert for you. I love medium bores like the .375 H&H!