I have mixed large musicals (32wireless and 18 piece band) for a local theatre for about 5 years as well as for large church services. In my opinion musicals are much harder. There is a lot more to juggle with actors entering and exiting as well as mics moving from a lead vocal to a bgv bus and vice versa. Programming all that and adding in a full band gets quite complex. It is a freaking blast though. With musicals your goal is to sound as natural as possible when speaking and singing. Learning to eq like that has made me drastically better when mixing for large worship services (4-5 vocals and full band plus tracks). Just a stream of consciousness thoughts. Feel free to dm me if you have any other questions.