Just my 2cp here, not even really related to solid DPS of these weps (someone already did that), also im using falchion in my post, cus its better than greatsword (im pretty sure)
People care too much about held monster damage. Yeah, you are ticking it down faster, but for what? There are two situations:
A:If your wizard is bad, and cant hold for more than 2 secs, you're most likely failing the quest, and if not, the cleric is going to "DC" after a bit in epic. Furthermore, if holds are not sticking, falchion will be ?better? anyway. (if it isnt actually better, then stick khopesh in instead (as in khopesh vs. heavy picks))
B: If your wizard is good, and his/her holds last a few seconds, then who cares about the extra damage. The mobs are held, and dying very soon, because your dps will be insane anyway, and they cannot hit back... extra dps in this situations serves only to speed up the quest a bit, and benefits in no success related way.
damage in non-held situations should be considered and is much much more important that damage in hold situations. This is because if the holds are sticking, autowin, if they are not sticking... problems, and the better against non-held weapon is outperforming the other one anyway.
You should only go for more held mob damage after you have finished making all your other stuff for non-held mobs.