I would be thinkin just the opposite.I use my daughters 243 in the woods all the time but if I was hunting the open spaces I'd choose the wife's flatter shooting and harder hitting 270.
Holdddd on, your wife and your daughter have deer rifles that you use, but you dont mention owning one yourself... i hope this isnt implying that you dont own a deer rifle!
nah, im sure you do, im just messing with ya, but about the question.. any of the choices mentioned would work. Your going to put so much time into thinking about this when it all amouts to the split second in which the bullet hits the deer. As long as when the bullet hits the deer, it doesnt matter which of these calibers you choose.. personally i would go with one that you know will remain popular and ammo stays abundent. The 308. seems to fit this bill