Share 'Conferences ... which to choose?'

In narrowing down a list of options for professional training, anyone want to weigh in on the best conferences to attend? As of now, I'm trying to choose between HigherEdWeb (which I've attended and loved) and eduWeb (which I've never attended). The tracks for both seem to fit what we're looking for: web content, social media, mobile, technical, development, etc.  Seems to be a case of eeny meeny…