Hi. Neither is better. Both are readily available anywhere and both will kill deer/moose with no fuss. The .30-06 is more versatile, but not by much. If felt recoil is an issue, go with the .270. Find a rifle you like and toss a coin.
This time of year isn't a great time to be buying a deer/moose rifle though. The rifle deer season opens on Monday. Two weeks or so from now(after 13 Nov.) will be a good time. Lots of hunters who failed to sight in, practice, etc. will be looking to sell their rifles(a used rifle isn't a bad thing) and the assorted shops will have 'em on sale.