I had fun hanging out with Chillwin! However I kind of sucked that fight as I a) died b) used primal fists for 10% of it. It's also worth noting that I don't have any AoB items and our bard failed to proc his epic for us. Which is why from a scientific standpoint there is really no need to be empirical when the answer is so easy to calculate:
- Abashi's: (40*2 + 29) / 30 = 3.63
- Fist of Nature + Fist of Lightning: (15*2 + 11 + 15*2*0.78) / 18 = 3.57
So Abashi's should do a bit more melee damage on average, especially against high AC targets as it now has a higher damage bonus than 1H, while the Fist of Nature will compensate with the procs. My sperglord calculator suggests:
DI = 2.5 average (spore king area w/avatar):
FoN/FoL: 103
Gharn's/FoL: 100
Abashi's: 98
DI=1.8 (KT w/avatar, 100% MR)
Abashi's: 76
Gharn's/FoL: 76
FoN/FoL: 74