My vote would be for the 7mm Rem Mag. I actually have hadall 3 of the calibers you mentioned, and while all killed deer in their tracks 90% of the time, the 7mm just felt better to me. My only complaint about my 7mm Rem mag is its 26" tube thats on it, other than that, it is a very flat/accurate rifle with less recoil than my 30-06 but it does have more muzzle flip. I have seen the impact on everything I have shot with it, as it is a very easy gun to shoot, and the muzzle flip is very easily fixed with the proper hold on the firearm.