I only watched snippets of the debate last night, but several things seem evident to me:

1. Obama is a much better pep rally speaker than a debater.

2. Hillary just doesn’t have “it”. She does not come across well and she seemed to struggle through answers and rebuttals, as if she was over coached & she wasn’t being herself, trying to say just the right thing rather than answering questions.  It was like when I pitched in little league and the coach would yell at me, “Stop aiming and throw the ball!”  She aimed too much.
3. Whatever Hillary threw at Obama he hit her up with, “I am rubber and you are glue…” She tried to tie him up with the Weatherman Underground and he retorted, “That’s funny. Her husband pardoned members of the Weatherman Underground…” He is excellent at that sort of retort.

4. Obama came across as the better of the two debaters - see 1.