Carousel or The Band's Visit. I'm sure Island will be sweet, but I don't think it's a must see.
Personally, I hated The Play That Goes Wrong, but there are many that liked it. I felt is was a second rate, unfunny Noises Off.
If we're not having fun, then why are we doing it?
These are DISCUSSION boards, not mutual admiration boards. Discussion only occurs when we are willing to hear what others are thinking, regardless of whether it is alignment to our own thoughts.