First I heard of it being useful to anyone haha. Here you go. Hope it helps.
Ranger Weapon Comparison Spreadsheet
Input your level, DW skill, DA skill, weapon damage, weapon delay, and haste (as a decimal ie .36 for CoF's 36%). Make sure you use the appropriate column for your 2 hander's delay to make sure you get the proper dmg bonus calc.
What this will do is spit out a dual weapon setup DPS rating and you can see how it compares to a 2 hander at a given level of haste etc. Was helpful for me. 9/17 dagger from HS + Swiftwind is the best DPS setup for Kunark. Woodsman is very VERY good however.