Long time lurker on this and the clusterf*** old forum, but thought I could chime in here. I wouldn't say this is my favourite moment per se, but it was basically the start of my Jays fandom.
I was only about 8 years old, so the memory is kind of hazy, but we made a big comeback in the '98 or '99 season at home against the Royals I believe. I think what really resonated with me was both the crowd and Shulman's excitement. I'm hoping I'm not overstating the magnitude, but I'll try to find the box score on B-R.