I think you mean Marlin, UM.
Since EVERYONE chambers a .30-06, you're really asking "What's the best rifle?" As always, Sako, Steyr, Weatherby Mark V, Kimber, and Cooper all come to mind. But as I mentioned above, the Icon is the best value in my mind (AND *arguably* the best period). The Brownings, upper Remingtons, CZ 550s, FN, Winchester, and upper Savages are certainly no slouches either. Sure budget rifles will fill the bill and are *very good* but I dunno about BEST.
The ubiquitious turnbolt rifle is what you want.
But a Sako 85 is always a good starting point for the BEST in a centerfire rifle.