When the October 2001 patch hits, I believe 2H damage bonuses should follow
this table. Generally speaking, 2H weapons have been junk for the entire life of the server. That will change with the Oct 2001 patch. Abashi's Rod will be marginally better than Gharn's Rock+Fist of Nature. The Bo Staff of Trorsmang will beat out double Wu's Fists of Mastery. Smart warriors will choose Gaudralek over two SODs (except Sakuragi, because fuck that terrible iksar 2HS animation) and the 2H epic will be seen more frequently than the split 1H epic. Paladins and Shadowknights will be able to do moderate damage. The biggest losers will be Rogues, who will be stuck with 1H.
Also, I played around a bit last year with dual wielding the Bo Staff. It's not as hard as you make it sound. When you see the 'you crush XX' you just click the mouse, wait 1 second, and click again. It's still way more work than I like to do, especially since the average raid on P1999 consists of about 50x the number of players needed to actually beat the content.