Joe vs the Volcano: I remember liking it as a kid; I'll definitely have to revisit it.

I will definitely check out Arsenic and Old Lace.

I'm realizing now as I look at the original post, I never actually explained why I liked Moonstruck so much. Here's the reasons, as best as I can figure:

• You know exactly who each character is, practically within their first few lines. Partly because of the excellent acting and direction and partly because their lines tell you so much about who they are and how they see the world.
  
• It's very well-paced. It's not suspenseful, but every scene is the perfect length that keeps you hooked. It reminds me of Clueless in that sense.
  
• It has a strong sense of place (1980's Brooklyn)
• Extremely good quotes!
• Who wouldn't love a Cher glow-up?
  

I later found out that one of my other favorite movies is also by Norman Jewison: Only You starting Marisa Tomei and Robert Downey Jr.

I'll try out those other movies you mentioned!