It depends, spectral lure, you don't get to choose what you do.
If the unit is wounded you have to heal it.
If the unit doesn't have wounds allocated, then you ressurrect, and it works as @Neck-Romantic stated, you do ress models with full wounds, or you don't.
Spirit torment allows you to choose, but it works exactly like spectral lure when it comes to ressurrection.
That's why if you are playing spirit hosts/hexwraiths you want return models slain effects such as Olynder, Rule of the Spirit hosts or the Black coach.