I cant comment on which is best, but the NF rail and rings are very strong and that's what I ahve on my 300 RUM. I did notice the the scope slipped forward until the rear bell was up against the rings. I need to call NF and ask how to deal with this.
On this site I would expect to get many recommendations for "tactical" style rings & bases. I've got them too and they are very strong and work great.
However, my favorite ring & base combo for non-tactical rifles is the Burris Signature rings w/ plastic inserts and their bases. The Signature rings can solve/prevent many problems while introducing none. I have never had a scope slip in Signature rings.
For a tactical rifle, I like the Seekins. I have a 20 MOA base and rings.....and they look great! The folks at Seekins are great to deal with, and they were very prompt to ship my last minute order so I could make it to the field in time!