I don't know if anyone has seen this guys series of videos yet but they're really well made and analytical. They really get into a lot of the issues of what separates the new films from the original series in terms of the writing quality.
Part 1
http://www.youtube.com/watch?v=jfM3WjyCt8s
Part 2
http://www.youtube.com/watch?v=QEn6-vLYvFQ
Part 3
http://www.youtube.com/watch?v=sATCoI7Ozk4
Part 1
http://www.youtube.com/watch?v=jfM3WjyCt8s
Part 2
http://www.youtube.com/watch?v=QEn6-vLYvFQ
Part 3
http://www.youtube.com/watch?v=sATCoI7Ozk4