I'm a 30-06 fan; in fact, so much so that I wonder why the .284 dia even exists. In saying this though; no animal in this world will ever tell the difference in killing power, and no shooter will ever tell the difference in the field of the trajectory of an equally contructed bullet of 175 or 180gr from a 280rem, 30-06, or 7mm rem mag. I think this is the reason why I like the 30-06 so much. The 7mm rem mag also needs a 24" bbl to strut it's stuff, whereas the other 2 do very well with a 22" bbl; something you might want to think about if you hunt in the timber.
Mike