Like everyone else on the interweb, I will vote for the one I own.
RPR
The Magpul stock on the Savage belongs on an AR, you'll likely be shelling out for something with adjustable comb height. The stock on the RPR is finicky to adjust, but is very usable.
The RPR comes with a decent muzzle brake, but it doesn't look like the Savage comes with one. They're worth having on a precision gun, even for the 6.5, so that's another $100+ to shell out to keep them equal.
Trigger and accuracy are probably a wash between the two. The trigger on my RPR feels very similar to the accutrigger on my dad's varmint gun, and both are adjustable. Both have aftermarket options if one wants.
My RPR has printed groups under a half inch with factory ammo, and is consistently sub moa. In the same ballpark as what Savage owners post up on the net.
Looks are subjective, but I think the RPR is far better looking. Neither win a beauty pageant.
With the lack of a brake and the meh stock, the Savage Ashbury would need to be several hundred dollars cheaper than a RPR for me to justify buying one.
If I did it again, I'd seriously consider picking up a 10t-sr or Tikka CTR and dropping it on a chassis. Especially with the $650 sales price that Cabelas often has for the Savage.
My $0.02