The idea of armies matched element by element is fun for a few games although I also enjoy complete mis-matches. The intent of dicing for control of the armies
... A witch doctor (or witch) whose skills are primarily anti-magic (defeating enemy spells) should be classed as cleric. Don't fixate on names -- HotT is all
"There will always be an element of imbalance in matched pairs" some genius - I forget who brought 2 identical armies to Macclesfield when that was matched