The M-14 is a fine weapon and is the "son of the Garand," However for prone shooting the magazine on the bottom makes it less user friendly than the inblock clip of the Garand.
Note: In WWII a US infantry man shooting the Garand could lay down twice the rounds a Brit could with his 303 Enfield or the Germans with their Mauser. Both of which are bolt actions.
PS
If you go to Springfield, Mass and visit the Springfield Armory museum you can see the prototypes and the first production one off the line and the subsequent rifles number 1 million 2 million 3 million etc.
John C Garand, Moses Browning, and Stoner were all geniuses in the design of rifles and machine guns. Kalashnikov also but his AK was a modification of a German Design but do not sell him short. He improved it vastly and made it into a potent weapon.
If you're going to list those names, you ought to toss in David "Carbine" Williams...