Well, first off, they're all good, okay? A major difference from one to another is final polish/finish--you'll have to look for yourself. The Savage is the "least purty", but as you'll note in other threads here, is very accurate.
The Remington has the reputation of being the stiffest platform, and thus is more capable of bench-rest accuracy. Eensy-tiny groups are far less important in the real world of hunting--two different games, entirely.
There are two methods of feed: The old Mauser or claw, feed; and the "push" feed of such as the Remington. In claw feed, the extractor catches the rim or groove of the case as it goes to the chamber from the magazine. The shell cannot fall out if reloading is being done on the move (or is less likely to fall out). The push feed just pushes the shell from the magazine into the chamber. The difference is of issue mostly to those who hunt dangerous game. The Model 70, I believe, is a claw feed.
Any of these rifles will serve well for hunting. Only you know what you want to do with whatever you buy. Any of them can be "tweaked" as necessary to shoot 1/2 minute-of-angle groups.
FWIW, Art