Since except for in the hands of a Pally the ESos will not bypass raid boss DR so a lightning strike would really be the better weapon for comparison.
So the Epic Sos is beaten for Dps by a minimum level 12 weapon...
Was this really intended?
People say TWF deserves to be more Dps becuase of the investment, I say thf or twf should be a prefference choice and Dps should barely be a factor. I personally don't like twf does that mean my dps with an epic weapons should be significantly lower then a twf with ml12 weapons.
Let me put it this way if 17 dex was a requirement for glancing blows while moving, I would have a 17 dex in a heartbeat.