I would go shoulder all the guns. There are alot of Rem fans here so it may be a little bias to what you are told. I think the Rem by far is the ugliest with that goofy 2 color stock but thats my opinion.

The Savages are usually pretty accurate and the Weatherbys are guarantee 1.5" groups. Id go with the Weatherby over a Rem any day of the week. The only draw back with a Savage is if you ever sell it you wont get much $ of it.

I would go with a 270 or 270Wsm in the Weatherby. If you get one of the others I go with the same caliber or a 7mm-08. Any of those mid calibers will be fine though. From a 243 to a 300(whatever mag)