Dmg question

[Deldanko]

I have a lvl 30 Iksar SK, I know SKs are not dmg dealers but why does it seem monks with a similar 2h weapon do far more dps? they hit more often and for more dmg(so it seems). I grouped with a 24 monk when i was 29 we both had 30dmg 40del weapons and he would do far more dmg on giants in WW. We both should have the same skills (double attack, offense) Im just curious i know im missing something here. Thanks guys