Given your definition of "better" then I guess it is. As for actual performance on game, if you can tell the difference; I'd be absolutely amazed. Take_a_knee give a good example where it's infeior under one definition of "better", but it all comes down to what your definition of "better" is. Given your definition of "better":
1) Wide off the shelf availabilty of ammo
2) Very possibly a higher resale due to popularity
3) Wider range of bullets
4) More brass available
You'll never beat the .30-06 in standard length, and .308 in short action. And again, when you're talking about the taking of game, if you can tell the difference when game is hit with a .260, .270, or .308, then you're just amazing.
