I've seen this suggestion elsewhere but I think it really deserves a poll because it seems such an intuitive and useful improvement.
Put a health bar on the heroes' icons in the troop bar so we don't have to waste precious time trying to locate them in the middle of battle to read it. Furthermore, I think shading the button as they lose health (ala the way it Greys - out when they've been defeated) would be also quite helpful. Maybe yellow when they get to 50% and red when they reach 25%.
Anyway, it should be easy enough to implement and would prove very helpful to a great deal of people.




