I mainly play ranger/marks due to my range weapon being much better then my melee set however I just recently found the sword off the last boss in TDQ (off hand is still a steel fang).

My questions are as follows.

1. Should i bother using a meele spec right now or should i wait untill i find an upgrade for the steel fang.

2. If i do go with a melee build which spec is best, nightblade or assassin?

3. Lastly Ive seen a few places where people say that melee builds do more damage then ranged under ideal situations is that true or is going melee on the right fights still just a wast of time?