Is the Mickey's Halloween Party significantly more crowded on a Friday?

I would expect more locals to attend events on the weekends. I typically go on a Wednesday, but that has just been the way it fits into my plans.

In the past you could almost always count on the weekends being the most crowded but that's not always the case now. Fridays are always crowded, but sometimes the weekdays sell out, too. It's hard to guess but you stand a better chance of lower crowds during the week.

For several years now every date has been sold out, regardless of whether it is a weekday or a weekend. Fridays and Halloween itself seem to sell out more quickly, sometimes as early as the beginning of August. So don't wait too long to make your decision.