Either of the 6.5 chamberings you mentioned are great. If you handload and want a hotter round with very similar recoil take a serious look at the 6.5 SAUM. It's pricey to shoot, but it's also an amazing round.
Now go get some 130 bergers or swift scirrocos and 44grs of h4350 and a br2, she will have a new favorite rifle and you might be building one
The 6.5 creed is a awesome little round.
I have all 3 and can't say one is any better than the other. I will add that I don't bear hunt but if I did. I would probably grab the 7MM08 for that and work up a load with a heavier bullet to hopefully dispatch the bear quickly.
Good luck with the new 6.5 , folks rave about them so it would be nice to see how you feel about after she gets used to it! Its got some pretty big shoes to fill , if she is used to a 25/06......... keep us posted!
I've drooled over the Savage Lady Hunter Rifle....been wishing the Wife or one of the Daughters would want to Hunt more and I'd buy them one to keep in my Gun Cabinet.....so I could use it too!
Post pictures and let Us know how the Rifle looks & performs....I like the idea of a .243 or 7mm-08,but the 6.5 Creedmoor is another interesting Caliber I'd Love to add to my Collection of interesting and different Calibers of Rifles!
If winchester ever sells the 125gn deer xp bullet get it. My creed shoots the factory load into 3/4 moa with 4 different lot #s I would look at the 120-130 class
The 120 smk's shot into a hole with 42 gr of 100V and have the same zero as my 147 load with Rl 26.
Both in peterson brass