It is not hard to position yourself using daggers and getting the backstab bonus. There are 2 scoundrel teleport skills and 1 warfare. With The Pawn, repositioning becomes free. Could you present the base values of an unenchanted basic endgame dagger and an unenchanted basic endgame sword? Evidently, they should be at the same gear level.
It shouldn't be compared to bows, as you cannot use a bow with a shield. You can, however, use shields with daggers, so I don't understand why did you bother to mention shield throw bounce as a plus point for swords.