I favor the 30-06 although I've owned both because of the wider range of bullets available and generally the cheaper prices for them than the 270. I like the 06's better resistance to wind drift at long range. In addition, I also load for my M1 Garand, M1A, and M1 Carbine so I already have a supply of 110grn, 147grn 150grn, 168grn and 177grn bullets I can use. Other than that, the 06 has an advantage if shooting larger, dangerous game because it can push 180 to 220 grn bullets.
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