First off, the bonus damage on weapons and attack speed are already taken into account when calcuating the weapon dps displayed on the tooltip.
Best suggestion is to put both into a spreadsheet with your character stats for an accurate answer. I obviously will recommend mine, since it has a section for item comparisons including weapons, but there are several floating around the net that should work well.
A quick approximation is to add your approximate OH dps to the MH dps and compare to the 2h, your OH dps for a 1.5 APS 1h is (200+300)/2 * 1.5 = 375 dps, so if the 2h is like 400+ dps higher than the 1h, it will likely give you a higher damage number. Based on your crit % I would expect the int and crit damage to be approximately equal. However the stats on the weapons in question play a somewhat significant role that are hard to approximate without using a spreadsheet. It might not make a lot of difference at first but when you're considering dropping millions of gold for a weapon, you want to be sure you're getting the best value for your money.
dagger seems to have the best speed with 1.5, magic daggers, with +500 weap dmg and 20% weap bonus dmg
beast offhand with 60int/60vit/200-300dmg
or a 1.0 spede weap with 77% crit bonus (5% crit) 980 dmg (1200 max) + 500 holy dmg(does this add to damage)
Best suggestion is to put both into a spreadsheet with your character stats for an accurate answer. I obviously will recommend mine, since it has a section for item comparisons including weapons, but there are several floating around the net that should work well.
A quick approximation is to add your approximate OH dps to the MH dps and compare to the 2h, your OH dps for a 1.5 APS 1h is (200+300)/2 * 1.5 = 375 dps, so if the 2h is like 400+ dps higher than the 1h, it will likely give you a higher damage number. Based on your crit % I would expect the int and crit damage to be approximately equal. However the stats on the weapons in question play a somewhat significant role that are hard to approximate without using a spreadsheet. It might not make a lot of difference at first but when you're considering dropping millions of gold for a weapon, you want to be sure you're getting the best value for your money.
Crusader DPS and EHP Spreadsheet, meant for Crusaders
My Wizard