Verb / Delay for vocal

Simple question, complex answer...
 
First, I've pretty much stopped using reverb on lead vocals, preferring to instead add some subtle short delays to simulate a room space. I reserve the reverb for background vocals. This helps in creating a soundstage with depth.
 
Second, the solution for what you're asking depends on why you're using reverb. If you're trying to simulate a live feel, then a real acoustic space has only one reverb "sound." So, you'd create a reverb bus, then send the vocal to it along with whatever other instruments need to have a sense of space, mixed in whatever proportion is required to set up the soundstage.
 
It's more likely you're using reverb as an effect on the voice and not so much on other instruments. In that case, it will work just fine as an insert effect in the FX bin or Pro Channel. You don't mention how you want to use delay, but most reverbs have an initial built-in delay time that sets the time before the first reflections hit. If you want to use delay simply to "thicken" the reverb, you can insert if prior to the reverb (in series) and the delays will be reverberated.