I wouldn't make the trip for a Sixers parade, honestly. They're the one of the major four I'm not truly passionate about. I've been to Phillies and Eagles parades. Gimme a Flyers and I can die happy.
I'd be all over a Sixers parade. It wouldn't be as big as the Eagles one obviously, and might eclipse the Phillies one, but at least it would be nice weather. I think we were standing in place for 6 hours for the Eagles one and it was pretty cold that day. For the Flyers, heck, they could be at least a decade away from winning the Cup. That could be a wait.
There's no way a Sixers parade would be as big as the Phillies parade was, let alone the Eagles.
The Eagles parade was be all/end all epic in every way. That was a five mile parade route from SOuth Philly stadium complex to the Art Museum. The Nats, by comparison, went 11 blocks. https://www.inquirer.com/eagles/inq/eagles-parade-pictures-20180208.html
Greatest sports town in the world, bar none.