I don't like ANY minis or war game without Fog of War and/or C&C elements. I don't need perfect realism or perfect balance (an impossibility for either) but like Easy E says, dry mechanics dueling is dull - might as well play YATZEE. Executing a plan with imperfect control and unexpected events is the real challenge.
That said, not a fan of the major abstraction that comes in Command and Colors, specifically the RED ALERT scale of things. That feels like stripping away too much flavor.
I've barely played, but I'm partial to the Warlord system where you have a die for every activation .. .they all go into a bag, and you draw to see if your own or your enemy's units go. I'd like to see that leveraged more widely.