Well, in my honest opinion, we ARE vulnerable... as is everyone else. Let's face it. JB is right. A few bounces here, luck there, and we are 25-0. We just as easily could be 23-2... proving Seth right. Furthermore, if say Duke, Arizona, et. al were in similar positions, I guarantee this board would be saying the same thing Seth and ESPN are.
As for the #1 seed, one would think at 29-2 we would be a LOCK, but I'm not exactly sold. Say we do lose to Virginia and Duke and either of them win out. They (rightfully should) jump us. I just don't see having lost two games down the stretch or even three (ACC tourney) why we should be ahead of the more recent success.