Military Organization!!!

[YellowCactus]

I've been playing Dominions for over two months now and am still ignorant of superior Army set-up tactics. There are many types of armies, with varied roles. I'd like input about favorite army compositions and what they're used for.
Personally, I tend to issue forth grand armies with too few leaders. When you 'GO TO WAR' are your sages putting on they're battle goggles, or do you use summons? What leaders fill which roles? Bring it on peope. I need an education!
-Yc