Originally Posted by
Angelus_dead
A high level barb uses khopesh as 15-20/x3 and pick as 17-20/x4. In both cases that comes to 31 damages per 20 attacks. (khop = 19+6*(3-1)=19+12=31, pick = 19+4*(4-1)=19+12=31). Thus they both provides 155% of nominal physical damage on crittable monsters. The smaller d4 or d6 damage of a pick is a real downside, but it's small, and is more than compensated by the feats you save from Exotic Weapon Proficiency and Oversized TWF.
Not sure here. The kopesh number should be 6 crits in 20 swings (best case) and the pick number 4 in 20. The kopesh still does x3 damage on its base of 4.5 per hit for 6*3*4.5=81. The pick does x4 on its base of 3.5 for 4*4*3.5=56. Both of these are subject to confirmation. As best case is 19/20 (a 1 always failing) you need to multiply crit damage by .95. This means the kopesh does 81*.95=76.95 and the pick 56*.95=53.2. For the remaining hits the weapons do their base damage. As best case is 19/20 (1 always missing) this means the kopesh gets 13 additional hits at 4.5 damage per hit and the pick gets 15 at 3.5. Total damage from the kopesh over 20 attacks, on average, is 13*4.5+6*3*4.5*.95=135.45. Total from the pick is 15*3.5+4*4*3.5=105.7.
That's the wrong way to think about this, because it overemphasizes the role of the weapon's base damage and treats it like it was the majority of the damage, when really strength, Power Attack, and Inspire Courage are all larger contributors.