Don't know how much actual help you'll get.
Browning fans tend to not think much of sako's;
Sako fans tend to be pretty fanatical about them.
I will say, (as a browning fan), that when sako's first came into the country I was shopping for a new a bolt. I took a look at the sako, but quite frankly at least at that time the fit and finish just didn't justify it being in the same price range of an a bolt. Haven't looked at one since though.
Also to be fair, I know nothing of the new x bolts, either.