It might come down to where I lived, for anything meaningful between the 3. I’d find the rifle, then the bullet. Not enough difference between the cartridges for me to lose sleep over. The 30-06 would seem to get the nod for going heavier, but if the 270 or 280 are twisted fast, then that’s far less of an issue….especially with monos these days. If you live in the lower 48, it’s all probably irrelevant between them.