Saturday's candidate forum was not really a smackdown, more a stating of opinions. As per usual, the Ann Arbor Chronicle has great in depth coverage of the event broken down by primary competition. You should check it out so that you will be informed when you vote on August 2.
Ward 2: Tim Hull v. Stephen Rapundalo
Ward 3: Ingrid Ault v. Marwan Issa v. Stephen Kunselman
Ward 5: Mike Anglin v. Neal Elyakin
I've tried to link to as many of the candidates campaign websites as possible, but I haven't been able to find all of them. If you know of one that I'm missing, please let me know. Remember, if you register to vote by July 5th, you can vote in the primary. Independent candidates have through August 15th to register their candidacy.