Depends on the application or purpose of ownership for me. In terms of Accuracy, my hands-down best would be my CADEX Guardian Light .308:
In terms of my best historical piece, it is a close competition between my WW1 Ross M10, my WW2 MP43 Sturmgewehr, or my unissued 1950 Long Branch SMLE No4 Mk1. The Ross wins for its Canadian uniqueness:
For my most "iconic" rifle, I had to choose between my Russian AKMS (most prolific Russian baby-killer), C.A.L. FNC1A1 (Cold War "Right Arm of the Free World"), or the "evil black rifle" of the moment, my Colt Canada SA 15.7 "C8 FTHB" service carbine clone. The oh, so scary "AR15" carries the day:
In terms of rarest pieces, there is no question - my 1960 Artillerie Inrichtingen AR10, of which only 10,000 were produced and fielded worldwide:
My best all-round rifle is a tough one, as this is in many ways my current "go to" gun. Restricted versus non-Restricted is not a big deal for me as I am in a wheelchair and am therefore confined to hard-stand conventional ranges. With that in mind, for general "fun gunning" it was a bit of a toss-up betweem my 10.5"-barrelled ACR, my Christensen Arms CA10, HK MR223A3, or the new kid on the block, a SIG Virtus in .300 B/O. And the winner is? The SIG Virtus! What a hoot to shoot in terms of minimal recoil and muzzle-rise, but with serious down-range punch out to 300(+) meters. Impressively accurate, as well., I would not hesitate to enage medium-sized game with this round. I am still messing around with different factory loads, but so far the Virtus in .300 Black/Whisper shows great promise as an all-round, do-all carbine effective to at least 300 meters: