I have four major contenders.
FMTW and Holidayz are at a tie right now, for me. I just had such an amazing run on Holidayz the other night, so it sticks out very well in my mind for how great it was. FMTW does have the sets and overall aesthetic I boogie with a lot more though. Which of these will be pushed out of my top 3, I don't know yet, very hard to say.
Killer Klowns is my current number 2. It's just so creative and fun, basically everything any big fan of that movie could want it to be. Before, I'd say this was a tie for first, but my last run on it was only good and not as great as my first, so I think it solidifies it as a runner up. If the energy stays low, I could see either of my number 3 overtaking it.
Us is definitely my number 1. It's just sooooo good. It's the entire mood it gives off from beginning to end. You could tell they definitely cared about making it the flagship maze of the event. And the cast is relentless, staying consistent between the visits I've given it.