Since Audrey was the one proposing the method of competition, and the focus of the challenge was to see who was the best and more worthy of having fans, she proposed a pageant. A tournament would have been more straightforward, but Audrey was not much of a fighter herself, not to mention the contestants were in various realms as well.
That was all well and good, but it wasn't like anyone could be forced into participating in the pageant. Tiffany neither understood the concept, nor cared for such a pointless contest. A few others as well were not so keen on the idea. That's when the crowds started getting rowdy, and some even tried to harass the focus of various fan clubs.
Let alone the fact that no one coming to the Inn was weak, the huge fan bases themselves weren't ready to see their idols being targeted. A fight nearly broke out and was only contained due to the timely action by the Security guards.
