A 270 is NOT more accurate than a 30-06. Aside from that, its selection of hunting bullets is narrower. The 30-06 delivers more energy at any range than the 270. If you're looking to hunt game like deer, antelope, and mule deer, a 270 would be a fine choice. But a 30-06, especially with proper handloads, can shoot just as flat as a 270, and delivers significantly more energy, especially at long range.
If you're looking to make a choice between the two based on ballistics, you would have to take the 30-06 over the 270. Although the 30-06 gives you more recoil than a 270 if identical weight and stock proportions, it's not a great difference, maybe 3 or 4 ft-lbs difference in actual recoil energy.