I've had a lot of 700's over the years that didn't shoot for snot, and some that did.
I've never had a Savage that didn't shoot well out of the box. I think some of that has to do with the floating bolt head.
With either one you'll probably change the stock. Easier to find a replacement stock for the Rem that for the Savage (single feed, staggered feed, action screw spacing, etc.).
Flip a coin.