If only 2 cartridges existed and they were .30-06 and 7mm Rem Mag, there's not a doubt that I'd buy the 7mm...
but in real life I wouldn't buy either.
Still happily answering to the call-sign Peetza.
The problem, as you so eloquently put it, is choice.
He is no fool who gives what he can not keep to gain what he can not lose.
-Jim Eliott, paraphrasing Philip Henry.