Starscream...
It's hard to say because both platforms can be made to shoot very well considering you have the identical parts swapped in or out. I've owned them all, but with 2 kids in college my only M14 is a Norc with lots of USGI parts in it for teaching purposes.
I just compete with the AR carbine and then deer hunt with the Norc M14. It's all good. I will have to say, tweaking an M1A is sure nice because the parts behave like some USGI M14 parts and everything comes apart predictably (can you say, "Norinco M14 Flash Suppressor?")
Now in favour of the Norc M14, they work and once you tweak them, they work well. ALSO, the newer shooters and people on a budget can get in on the game, that's really what I espouse (big words, eh?)

about the Kommunist M14.
I'm reluctant to go out there and tell people (I hate being prescriptive) to buy an M1A for $ 2000ish, I've been poor or under a tight budget for too many years so that whenever I have some spare cash, I'm sensitive to other people's situations. At least I feel good about telling people not to buy ONE, instead, buy TWO of them! I'm still under a budget these days, and the economy sucks so I'm not gonna start preaching about how you #### might fall off if you don't buy a Sproingfield M1A (I've owned 4 of them).
So Starscream, it all depends on how much you wanna sink into this platform to make it a super tight grouper. If all you wanted was a tight grouper as your sole criteria then find some varmint .308's on the EE forum (I mean all you accuracy buffs

) If you sank a few thousand on the Norc M14 frame with USGI parts, there's not guarantee that you will recover all of you money or the majority of it, then again, my magic wand is defective
I hope this helps you.....