Was still on the fence about my 3 choices (Nerco, Sorc, Rogue). Friday I leveled all to about 6, confirmed my prior doubts about Rogue and deleted it. I got Necro to 15 and Sorc to 13.
Sorc: Arc Lash, Chain Lightning, Hydra.
Necro: Reap, Bone Spear, Corpse Explosion
Necro still feels the stronger choice despite the nerfs after the initial beta. That being said, I'm now 60/40 in favor of Sorc at release. I assumed when I got upgraded Necro minions, they'd replace the existing ones (I.e. my 4 Warriors would go away when I got 3 Mages). Turns out they keep adding, so I have 7 minions, and would have 8 when I unlocked Golem. I don't want to be a shepherd simply herding my attack bots thru Sanctuary.
I saved the Sorc build you referenced to try at release.
Of course, there does seem to be controller targeting issues with Teleport. That might make a difference in my deliberations.