Is it safe to say for ballads slow songs the compression should be on vocals slow attack and slow release? and for more syncop[ated rock songs med attack and med release?

Also I usually use slight compression going in 4:1 ratio with threshold at -6 is this gentle enough to manage peaks? Later on I usually add either the LA-2A compress down so it goes no further then -4. Then add some EQ around 12kHz. Maybe a little bump around 5kHz too. As the LA-2A kind of warms things up a bit much with my mic.

Also should I be doing a HP on my vox around 30Hz?
Thanks