Came across this analysis of some of the reasons why the Oscar pics for best editing were nominated...
http://www.slatev.com/player.html?id=1426312971
From the promo:
Oscar's Obscure Category
Forget best picture. How can any of us judge what should win the Academy Award for best editing? Hollywood editor Mark Helfrich walks us through well-edited scenes from this year's five Oscar-nominated films.
It really drives home the point on how the craft really is an invisible art form. Put these great films in the hands of lesser editing talent, and you no longer have a great film