Which hero class (based on skills) do you prefer?

1-Warlock, due to enhanced spells;:D
2-Necromancer, skeletons;:)
3-Knight, due to training;:o
4-Elves, due to the avenger;:confused:
5-Demons, due to gating;:(
6-Wizards, due to artifacts (a simple creature with an artifact isn't very good. Artifacts are only needed for heroes!):mad: