Mithril 2h sword vs Baton of faith

[slow2]

Which one wins?

Mithril is 21/40 with 31% haste. Which is effectively 21/28.

Baton is 30/40.

Maybe i don't get how this all works, but are they the same DPS? Other than cost is there one reason or another you would prefer one?

These are my thoughts:

Both are rated at 40 delay, and therefore get the same delay bonus. But the mithril seems to take the edge considering it has an effective delay of 28 with the same bonus damage. This is a very very slim amount of damage, but it will add up over the course of a fight presumably.