My Favorite Musicals of all time and the number of productions of each I've seen:
Sweeney Todd - Second National Tour with June Havoc as Mrs. Lovett, IU School of Opera production, Broadway revival with Dorothy Loudon and Bob Gunton; NYC Opera production; Broadway revival with Patti LuPone and Michael Cerveris and an excellent NJ Student Production with College and High school kids
Ragtime - Original Broadway Cast; non-equity tour, Paper Mill Playhouse, Plays in the Park, Broadway revival
Les Miserables - Original Broadway Cast, plus too many return visits with various Broadway replacement casts- including Ricky Martin as "Marius"!, Metuchen High School production- one of the first High School productions allowed - the kid who played "Jean Valjean" in this production was invited to perform at the final Broadway performance; Broadway revival; Paper Mill Playhouse of new production that is now touring the country
Falsettos - Original Off Broadway cast of Falsettoland; Hartford Stage production of both acts; Original Broadway cast; Asian American Theatre company production of Falsettoland; George Street Playhouse production
Wicked - Original Broadway Cast three times, including Kristin and Norbert's final performance, plus two more times with Idina and George Hearn
Secret Garden -Original Broadway Cast, Broadway cast with Howard McGillin as Archie, First Non-Equity National tour, Plays in the Park, PaperMill Playhouse and Royal Shakespeare Company production at Stratford Upon Avon