Quoting myself from the last thread.
When I posted that I was level 16 or so, I'm level 25 now and I play completely differently.
http://us.battle.net/d3/en/calculator/witch-doctor#hiUdfT!bc!..aZaa
I wasn't planning to play with pets but the Gargantuan is so fucking bad ass. For spells, Firebomb and Acid Cloud are amazing and have basically replaced my Poison Darts and Toads respectively.
Zombie Charger is kind of shit but Spirit Walking into enemies and throwing a rotting zombie at them along with some Acid Clouds is fun. I like the passive 20% damage reduction from poisoned enemies effect so it works nicely. I was using Locust Swarm instead but the mana cost is just too high and zombie is quicker and longer range - they usually die before the swarm has time to spread at this point in Normal mode.