While both will perform quite well, there is a major difference in design as to the two models.
Savage is a component design. Easy to change barrels, trigger is somewhat quirky, stock is basic and inexpensive (wood version). Bolt assembly is modular and can be changed out to different calibers. Basically the entire rifle can be switched to different calibers with a few minor tools and needed parts. This is the home gunsmithing dream.
Remington is the basic for the industry. Quality is more detailed, but changing barrels requires a gunsmith or at least a good vise/wrench set up. I agree that Remington quality has slipped over the years. Now they are rougher in some respects, but I still think they are a more detailed design than Savage, although Savage is a fine rifle as well.
If I was to make the choice, I would purchase a good used Remington, in .30-06 or .308. But, that is my preference for standardization. There are really nice Remington 700 BDL's available in the used market for under $500, and sometimes hundreds of dollars less.
.270 is an excellent round, and has great ballistics to do most anything you want, however since this is a survival forum and you are basically starting fresh, I would recommend .30-06 or .308 for compatibility and standardization. If you already had a .270 and were set up for it with ammo and reloading equipment I would say just stay with it, but if you are starting out...get the .30-06 or .308. They do have a little more recoil, but not to notice really. Ballistics are very similar out to reasonable ranges, despite what everyone says. The .30-06 will give you an additional 150-200 yards trajectory over the .308, in optimal conditions. Sometimes less. Both the .30-06 and the .308 give the advantage of loadings for larger weight bullets, with the associated advantages for distance shooting. While .270 is an excellent round, it has not been adopted by any military systems that I know of.
While Savages work fine, and are accurate...you don't see them in the military or tactical fields...at least not the ones I am around. The civilian market has grabbed them, and they do shoot well, but Remington has driven the military end for a while. I could be old school, but that is my take.
There seem to be more Remington aftermarket options, although Savage is coming up in that area all the time.
Hope this helps.
re