I have had all three- currently shooting the 300wsm with 168 Bergers and so far liking it.Extremely accurate,low recoil,plenty of speed,and have used it on mule deer,antelope,coyotes,and a 375 bull from a 100 yards too 450 with great results.The 06 in the safe has sentimental value as I shot my first deer with it and the other is a 1950's Winchester Feathlite that hasn't been shot with the box and hang tags that a friend gave me.
Traded the 300 mag for a nice over and under mainly cause I bought the custom 300wsm that was a great deal.
Never have felt I needed anything more.