I'll just say follow your heart. You've gotten some good arguments, and some not so good.
I've had both and the Weatherby is now gone. Mine is not a fair comparison, a MK-V vs a custom Remington. The Weatherby did not shoot particularly well and the Remington shoot extremely well. I could not get my handloads to shoot as good as the Weatherby ammo either. The first and only time that this has ever happened. For a while the WSM's looked to be on the extinction list but the 300 WSM seems to be doing ok. When I had my MK-V Weatherby/Norma was the only game in town for ammo. Now there are a few more choices although I expect the Weatherby/Norma stuff to be better quality.
Good Luck with your decision!
