Between the two, IMO at least based on my examples the Vanguard will definitely be the more refined rifle. I thought the bolt was smooth when I bought it, then I did my initial cleaning and WOW. The threaded muzzle is nice though I don't see myself ever taking advantage of it.
Like I mentioned, to me the biggest plus for the Savage is the ease if swapping out barrels. Had I had a little more money when I bought my Vanguard, I really thought about buying a Savage 10/11/12 and swapping out for a barrel like this (out of stock at the moment):
https://www.eabco.net/EABCO-Accurac...0-and-Axis-223-Rem-Wylde-17-Blue_p_15618.html
Being able to shoot 5.56 and .223 with the Wylde chamber would be pretty nifty, especially since I have some 5.56 for my AR playing around.
But, if you don't have plans to swap out the barrel, while the Savage is still a good rifle IMO it really doesn't have anything over the Vanguard.