I believe that the NW Action Works Ramrod is a rebranded Defiance. In some of the pictures on their website, you can see that the action pictured actually says "Rebel" on it. As far as which is "best" I don't know.
I like the options Defiance offers, so you can truly get the action YOU want, not somebody else's desired action. Another to look at may be the Deviant by Defiance. It has an integral 20 MOA picatinny rail and recoil lug.