Are you a handloader? I ask because factory ammo in 25-06 is more expensive and has less selection than 7-08. I bought a box at Gander Mountain this week, 1/2 the selection, and $1-4 more than 7-08. If you are stuck with factory ammo, go with a 308. Lots of choices from surplus to match loads.
If you do handload, 25-06 seems more interesting. I just got one, but I never was interested in a 7-08. Nothing a 7-08 can do that a 270 can't do better (and louder, and more recoil.)