The 6.5 Creedmoore is great, almost matches the performance of what the Swede's put out in 1894.
Most shooters would never notice any difference from an accuracy/performance standpoint between the 6.5 Creedmore, 6.5x55 Swede, 260 Remington, 6.5-284, or 6.5-06.
I am a big fan of the 6.5 mm in general, and when I was building a LR rig, I built a 6.5-06, because at the time the 260 had just been introduced, and wasn't widely available. If I was doing it again today, I would build a .260.