Charged Dash Raider, not Int stacking HOWA

So I'm attempting to make something interesting with a charged dash raider. I have a very very rough pob setup that is not meant to look complete.
https://pastebin.com/hJmw6TPx

A few questions I have:

Would the Avatar of Slaughter route + getting more frenzy charges be better than taking Avatar of the Veil? I don't know how the POB deals with the exposure. I kind of like the Avatar of the Veil phasing route since it gives more defenses but at the same time the phasing may not be all that useful while using charged dash.

Are elemental penetration nodes worth pathing to?

How much POB dps increase is worth it on a node.

How good is building into crit? Knowing whether crit is worth it has always been unknown to me.

Dual Wielding vs 1H+shield vs 2h? How to know what is best for the build?

Axe vs Sword vs Hammer/mace, how to tell what is best?

Also I tried making all the gear really bad to offset the good affix combinations. I'm just trying to make general okay-ish gear. Astramentis is just for required stats. Also just before posting this I saw that my resists are not capped: Was due to last minute adding thread of hope, that can be fixed by a flask or somewhere on the gear, I just didn't want to add it in.