Which installment of the Heroes series had the best campaign storyline for you?

Voted for the second one. The plot is really good. And why aren't there any Chronicles? I recently played "Rebellion" and "Ice Blade" and I liked the development of the story. P.S. Please, don't start a long discussion here like "Chronicles don't fit, blah blah blah...":) :) :) And in general, Might and Magic 6 is awesome - a great plot.