I would like to get some guidance on how to best reboot my Wily environment. I have databases and  MOM on the same box and 10 collectors on three servers

The MOM and database reboot on the third Sunday of the months 
Two of the collector servers reboot on the even Sundays of the month.
The last collector server reboots on the odd Sundays of the months 

Is that the best way to do this or would you recommend a different order?

APM 10.x

Start the Database first . Wait until it comes up successfully. Then any of the collectors until each one is successfully started. Then finally bring up the MOM.

See 

https://communities.ca.com/thread/241785934-restarting-an-apm-cluster
https://comm.support.ca.com/kb/does-em-need-to-be-restarted-when-apm-db-was-restarted/kb000012420
https://comm.support.ca.com/kb/em-is-very-slow-to-come-up-or-hangs-after-a-restart-or-network-glitch-many-components-do-not-work-correctly/kb000005846