Most of my experience with musicals was being in them in high school and then a couple of summers after that. Seven Brides for Seven Brothers was probably the most enjoyable for me to perform in. Fiddler on the Roof was probably the highest quality one I was in (both of these were after I graduated high school). It's hard to pick between those two, but I'd say Fiddler is the better musical.

Beauty and the Beast was a ton of fun to perform in too, that being my first musical I'd been in. Music Man was awful to be in and I just can't enjoy that musical thanks to my terrible experiences.

As far as movie adaptations, I'd have to say my favorite is probably Les Miserables. I'd love to be in a version of that someday. Outside of that, I really prefer seeing my musicals live in a theater. It is my goal to see and/or be in a live production of Les Mis someday though.