Ahhh, yes, the subjective is objective (yet again). Kirk's Third Law of the Internet is in da house.
What is best depends on you (or, rather "for you"). If you joined the Bundeswehr as a young man and toted a G3 about, and then immigrated to the USA later in life, an HK91 is probably best. If you carried an M14 for a couple of tours in Vietnam, then an M1A may be best.
If you are a gun geek and shoot the M1A in competition, that is best. If you are a gun geek and lust after an FAL, or AR10 or whatever, and are willing to put in the blood, sweat and tears to become one with the weapon, then that is best.
cav, remember what my Uncle Sonny told me in typical Hoosier fashion, "[d]ammit, boy, rifles are like dogs, you have to put in love and lots of work."
I like Fulton Armory M1As, real HK91s (not the clones, but I'm told the clones are getting better), FAL (get a T&D guy who knows what he is doing and you can get better than Belgian grade weapons), ARs (I like Rock River and use them at gun skul) and Ber M59 and the SIG AMT.
Lots of good guns, very few good men. Put love in that dog, cav!!!