Fit and finish on the Stevens is higher then the Rem SPS. Savage put their high end Classic gloss blue action in the least expensive rifle on the market. Both have stupid triggers and I hear that the SPS cannot be lighten as much as the past 700's. The Trigger on the Stevens can be crisp but will never be considered light. They can be changed easily though.
The stocks are about the same on both with the better recoil pad going to the Rem. In a light kicker, a wash.
Both can shoot well but I have had so much success with the Stevens/Savage actions and rifles that is what I would recommend. Bed the action and free float that barrel (applies to either rifle).
Savage actions now have as much aftermarket stuff as the Rem. The actions are better manf and finished. The actions are modular allowing a variety of swapping to occur. The Savage/Stevens action are actually more flexible to changes then the Rem.
Jerry