Flip a coin if you're going to handload. I've used the 140 Accubond, 140 Amax and both the 130 and 140 VLD's to hunt deer-size game with the 260. All were dead with one shot. The two calibers you're considering are so close to identical it's not worth stressing. Seriously. 260 brass is easier to come by, and easier to form from 243 than it is to buy 6.5 Creedmoor. That's about it.
Personally I've owned 2 260's and my newest rifle I built in 6.5 Super LR just to do something different, but I imagine performance will be the same.
I would pick whichever one you can get cheaper and/or easier if there's any difference at all.
