Went to the Comic Con today. I might go again tomorrow just for kicks. But while there's lots there, it can all be done in one day.
Interestingly enough, while FanExpo was larger and there were a lot more people, the Wizard World show had a lot more people dressed up with some wicked costumes. It was setup pretty well and a lot of fun to check out. Definitely a good first run of the Wizard World show in Toronto.