Now that I think about it, the busiest fiesta zones I see are Jelly and Personas, mostly for grinding to TM 120 for 3rd job or Personas, grinding the TM you need after 3rd job.
Both of which can be substituted by Nora Sewer quest, so I don't really mind the Fiesta change too much.
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World of Warcraft US Allure, Holy Paladin <Taurential Reign>
League of Legends Queen Nimera
Nintendo 3DS 4511 - 0825 - 1589