It's all about personal preference. My takes...
I would recommend Something Rotten if you enjoy wordplay, have familiarity with Shakespeare and/or musicals in general. One of my favorites, I found it very clever.
I did not enjoy Finding Neverland. Performances were fine. Nothing to write home about. Maybe if you liked the movie?
Found Aladdin to be too childish and shrug-worthy, but I shouldn't be surprised though. While loving classic and new Disney movies, I loathed Lion King the Musical. Swearing off Disney musicals as a result of being burned twice. Performances were good; James Monroe Iglehart was amazing.
I'm scheduled to see School of Rock later this month, but I loved the movie. My assumption is that if you did not like the movie, don't even bother. Rock music also happens to be my favorite genre of music, and I expect that to be a factor to someone's enjoyment of this.
Just to jump on someone else's comment since it's not on your list, Daddy Long Legs is ah-mah-zing.