Honestly this is a debate between a silver Honda accord and a silver Toyota camry... spitting hairs in horsepower and features differences. Both are gonna be just fine with minor differences and slight trade offs. Brass wrapper and a few fps don't make much difference.
*edit
Don't mean to be trite about the dilemma, years ago I'd print out sheets and sheets of cartridge comparisons and pour over the decision. Years later now I've owned (sometimes concurrently) all manner of competing cartridges. At one point my desk had a 7 mag, 7 wsm, 7 rum, and a straight 284. Then my buddy brought over his 7 saum the same week my brother in law bought a straight 280 for me to load for. So at one point my house housed most the cartridges in the class. I picked the brass case that looked "cool" to me and firmly belive that's a good a reason as any. Reality is all are gonna work just fine, pick one you get a kick out of holding in your hand.