I can't stand the SPS stocks, both regular and varmint. Have you held them? Have you held the Ruger and compared? I suggest holding both and go with feels better to you. Even if I did hold and shoot both, my opinion wouldn't matter much as it's not my $$ and I won't be the one shooting it.
As far as actions and barrels go, I think you know my answer
Never was a Ruger fan, but never disliked them either. Solid rifles and priced well, you can't go wrong with them, how's that for honest?