Armor nodes?

Hey everyone.

I'm a ground slam marauder and I've been having trouble with survivability.
I've looked at a fair amount of builds posted on the forums. A lot of the builds emphasize getting the life/life regen nodes which I try to do.

My build right now is

But in terms of armor nodes, I've seen/heard mixed things.
Are armor nodes not worth getting? On paper, it seems like getting armor nodes would be good so that my survivability isn't just tied to life, but damage reduction as well. Also for leech and life on hit, more armor would mean less nodes one would have to get for life and more leech overall then.

Thanks!

Armour nodes are really needed. however I'd recommend going into the ones that have a 30% node attached. I myself made a 2hander with 6 armour nodes and 2 armour/es and I'm level 69. This will suffiece for now because I took every health node along the way. The damage I take from physical is pretty low.