I decided to add in the other parks that received surveys. SFDK is a repeat, but only because I decided to add in the other options.
(Content has been removed since the original poster added in the data at the first post)
Parks that don’t have surveys: Frontier City*, Knott’s Berry Farm, La Ronde, Michigan’s Adventure, SF Darien Lake*, SF Great Escape, SF Mexico, SF St. Louis, Valleyfair, Worlds of Fun
*Owned by EPR Properties
(I excluded the two doomed parks, along with the yet to open SF Qiddiya)
I haven’t been to any of those parks, and I don’t feel like looking into them and picking my favorites of the choices at this time. That said, I wonder if all of the ones without surveys are going to be closed and/or sold off. Knott’s, SF Mexico, and SF St. Louis are the larger of the omitted parks, and you would think at least Knotts would be safe.