The 260 Rem spanks the Creed and you don't have to put up with the tards.....
.260 Rem performance is amazing.
At this point though, if I had neither, I would go Creedmoor.
But, I was just shooting last month with a friend who had his .260 out. He doesn't care about fitting long bullets in a magazine. He reloads, and he already has dies and brass. He'd be, IMO, an idiot to sell his .260 to buy a Creedmoor.
Same for .243. If I had one, I wouldn't have gone with my 6mm Creedmoor. But, since I had neither, I went with the one that went with my skinny jeans.....