I had an epiphany when I found Bore Snakes; they're that good. I've got one for all of my calibers (and a .338 too, just in case:-)). But you really should keep all three.
1) Bore Snakes are a great replacement for bristles brushes, bench or field. Just stick the part with the bristles in the Hoppes bottle, and go to work. I have also been using one to wipe the bore dry prior to the first firing of the day, to remove excess oil, lint, spiders, etc ;-). I suspect that using it to oil the bore would waste a lot of oil. Save that task for a patch on a jag.
2) Dewey Rods are essential for any application requiring pushing patches (breach to muzzle, of course) through with a brass jag (i.e., for J-B Bore Paste, Sweet's 7.62, CLP, etc.). If you are considering a quality one piece cleaning rod, you should also think about getting a Cleaning Rod Bore Guide. Look at pg. 53 of Armalite's catalog for a reference.
3) The GI Buttstock kit is just as essential, for emergencies. Leave it in the buttstock. You may need it to push a stuck case or lodged bullet. You can also use it to wipe the bore with an oiled patch at the end of the day. Using a jag you will have to push it from chamber to muzzle. --Or-- Using the supplied eye loop, loosely assemble the rod, insert it from the muzzle, attaching the eye loop with a patch when it appears from the chamber, and pulling it out to the muzzle. Repeat as necessary.
In summation, get all three!
Semper Fi,
Dave