I had a 25-06. In my humble opinion it's a much better calibre than a .243 if you want something to go after the larger deer species with as well as the smaller ones, and it's great on foxes loaded with 85's. I sold it and went 6.5 as I found the 25-06 with it's much lighter bullets needed to fly too fast to impart enough energy and carcass damage was often spectacular unless you used AB's (never tried Barnes back then), especially when you put it through the shoulder rather than the chest. The 6.5 is much more gentle. Mind you I run a 6mm for fox, so don't have to factor that into the equation anymore.
I don't think you can compare a 25-06 with a 7mm08. You can certainly compare a .243 and 25-06, and separately you can compare a 7mm08 with a .308, but there is no overlap in bullet weights between the two groups and I believe there is room for one from each group in your cabinet for different jobs.
In terms of BC the 7mm is the most efficient by far, but it's only relevant if you are shooting more than 300 yards, which for stalking doesn't really matter. And if you really want to use the efficiency of the 7mm bullets for LR shooting where it's a real benefit why put it in a case as small as a 7mm08, why not spark it up a bit to a bigger cartridge and take advantage of the BC or take the benefit of the frontal area increase and energy dump of a .308 at stalking ranges at lower velocity

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I have a 6-6.5 Lapua for fox (70 grain @3550fps), a 6.5 Lapua for Fallow and below (120 grain @2950fps), I am just playing with a stumpy .308 as a woodland deer/driven boar rifle (168 grain at 2500fps) and a 280AI for the hill and a bit of paper punching at distance (120grain @3300fps for deer or 162 grain @2950fps for LR paper).
Wouldn't argue that any of them are better than any of the others overall, but you wouldn't find me shooting Boar with the 6mm or lamping foxes with the .308. Horses for courses.
And yes I know I could have fewer in the cabinet, but I freely admit I enjoy experimenting with them.