I really like the 260 (6.5x308) and usually they end up with a female member of my family (extended family). My personal 6.5 is a 6.5-06. As for the CM, who knows. Peoples taste change all the time. 5 years from now it may be like the 308 or could go the way of the 257 Roberts.
No such thing as a stupid question. What is stupid is not asking it.