However two quick notes : I think I have better spent most of my skill points on my second attempt and I heard one of the latest patch for ego draconis have changed some game mechanics on two handed, but I have yet completed the game when it was released.
I've been wondering the same thing, but hadn't considered that dual-wielding may be significantly more powerful - in spite of my previous post!

But whatever the reason (or "all of the above") I found this play through significantly easier (and, for me, more enjoyable) than my first due to not dying constantly. Which is always a bit of a drag.