RE: 25-06 or 270 WSM
Just get a good old 270 winchester. It will still do the job on any elk or moose or deer as long as you do yours. And ammo will probably be cheaper and more available for a 270 winchester than a 25-06 or a 270 WSM. but if it was absolutey narrowed down to a 25-06 or a 270 WSM i would probably go with a 270 WSM, just cuz i love the 270 caliber.