1. setblock ~ ~ ~ minecraft:beehive{Bees:[{EntityData:{id:"minecraft:bee"}},{EntityData:{id:"minecraft:bee"}},{EntityData:{id:"minecraft:bee"}}]}
   

2. setblock ~ ~ ~ minecraft:beehive{Bees:[{EntityData:{id:"minecraft:ravager"}},{EntityData:{id:"minecraft:ravager"}},{EntityData:{id:"minecraft:ravager"}}]}
   

Command #1 works, but command #2 doesn't despite having the exact same syntax and nbt format. The only way that I could make ravagers spawn instead of bees when I break the beehive in survival was to spawn 3 bees in creative, wait for them to go into their hives, f3+I the block to get the setblock command, and use an external text editor program to Ctrl+H "minecraft:bee" to "minecraft:ravager."