Got my hands on a pair of Special Edition Kyr'Ozch Nunchacko then commenced to do some testing on my lvl 200 MA. If you want to skip the details the long and short of it is that against very high AC targets two nunchakos would be better for me due to their higher min damage value. Although against anything you won't only do min damage to if you don't crit fists are better.
Fists with about 1750 MA skill:
175-718 (545) @ 1.6/1.6
Special Edition Kyr'Ozch Nunchacko:
233-266 (299) @ 1.5/1.5
Damage per minute
Code:
Very high AC target:
agg/def: -56
Fists
53 940
One nunchacko
69 788
Two Nunchakos
69 450
agg/def: -100
Fists
47 674
One Nunchako
50 628
Two Nunchakos
55 916
Typical mid to highish range AC target:
Agg/Deff: -57
Fists
109 706
One Nunchako
94 970
Two Nunchakos
98 280
Agg/def: -100
Fists
84 557
One Nunchako
63 971
Two Nunchakos
70 704
I used the ICC Punching Bug (a very high AC and good defence thing in ICC on test for people to beat on that does not fight back) and Stinking Scorpids (lvl 205 mobs in Beliel Forest that drop the droppings for HI raids, they're all the same and there's a number of them) in these tests.
Agg/def: -100 is full def.
Agg/def: -57 & Agg/def: -56 is about 20% up from full def.