The best gun should be one that you can shoot well. We all want lots of power and range however recoil and rifle weight matter a lot!
Long ago now many found that what a 7mm R. magnum could do was about all most could shoot well. That's still true.
Today I like the 'modern' Kimber Montana's I have in 270 WSM and 7mm WSM.
To each his own.
The Kimber Montana in this picture is of my 270 WSM with the Leu. tactical scope.