I own both a 700 and an A Bolt (chosen over the X Bolts). Not going into every detail, they are excellent both. The Remy is more military looking, like most of them (except the CDL and other fine wood). The Brownings look more polished. The A Bolt has a somewhat shorter throw, which may help with scope mounting. The Remy has an internal mag, whereas the A Bolt has a hinged box.
I have not tested the Ruger American. In this situation I'd go to Gun Tests or Chuck Hawks. They test just about everything, and write responsibly, not for the ads or the youtube fame.
Also I would consider a Savage, but you are not asking about them.