What do you think are the most important differences between men and women?
The important difference was the view out the front window.
The important difference was in the way he led the others.
Here I must explain an important difference between us and you.
Yet there are some pretty important differences between 2005 and 1945.
The important difference between me and you, therefore, is one of time.
However, the most important difference was that of world view.
Of course, there are many important differences between the two works.
But as a matter of fact, there was one important social difference.
And that may be the most important difference of all.