Either will take pretty much any non-dangerous game in North America out to 250-300 yards. Ammo is readily available for both
In that caliber range, I have a couple 30-06, a 270 Weatherby Magnum, 7mm Weatherby Magnum. The downwards range energy of the last two blow away the 30-06. So, I would not take the 30-06 elk hunting because I would expect to have to shoot say 400+ yards. My 12 year old son took a black wildbeast from 250 yards with 30-06 and 165 gr triple shock Barnes, it was dead right there. I don't think you would go wrong with either cal. Just one might be a littel better depending on the game and where you are going to hunt. (Obviously not in NJ with rifle)