First, gone are the days of finding off days. You are better off planning for large crowds and hoping you get lucky with a light day. Dapper days are also that week so expect that to affect crowds.
Since genie plus was implemented here are the busiest days from busiest to the slowest:
1) Monday
2) Saturday
3) Tuesday
4) Wednesday
5) Thursday
6) Friday
7) Sunday
https://assets.simpleviewinc.com/si...2023_b1d91e5c-c9b4-4858-81d1-df5ba5764961.pdf
That's all of LAs spring break schedules. You'll have to cross reference Utah, Nevada, AZ spring break dates. Other than dapper days I think you may get a lighter busy week.