I don't have enough time to explain why road racing/autocrossing is harder. Many good points have been made already. Simply put though, the elements of the two are more like comparing apples to battleships. It's NOT a knock on the quarter milers. It's just the scope is SO different. I think both are fun. And being someone who does both I have two cents worth. You really have to do both to have a solid opinion. Otherwise you're just sticking up for whichever one you do.
And there's nothing wrong with having a debate like this.... it's fun.
And there's nothing wrong with having a debate like this.... it's fun.