So far, my list goes:
(1) Highschool of the Dead
(2) Zom 100
(3) Kabaneri of the Iron Fortress

I've looked far and long and it's pretty hard to find an anime that is English dubbed and worth a crap. Do you have any zombie anime that you like over these ones? Englished dubbed suggestions only please.

Does Hellsing count? Vampire, ghouls, undead

I don't really know enough about the show to make that conclusion.

none

Highschool of the dead and Hellsing Ultimate

I visited here just to check if there are any animes that I can watch, I already watched most of the animes that was mentioned.
If you have more zombies anime let me know :)

If we include ghouls into it I would have to say

Tokyo ghoul
Zombie loan
Corpse princess
School-Live

Highschool of the Dead >>>>>>>>>