You don't have Hysteria, which is easily more threat than Ravenous Dead, or really almost anything for a 1 point investment.
You are foregoing Death Strike which is an easily rotationed instant heal at virtually no cost for significant investment.
You aren't getting Morbidity, which is not only synergy with DC and Sudden Doom but a 15 second reduction on Blood's greatest source of AoE threat.
You have Spell Deflection in both builds without WoTN...
I don't really understand either of them, but the Necrosis build is closer to being the best use of talent points. You would do well to consider Hysteria though... it's very foolish to skip out on it for any situation.