It really depends on the sound you are looking for and how you mic your acoustic to begin with.
I generally lay down a click track to keep things in time, then lay down a scratch track with both vocal and acoustic, then the “real” production begins.
I record the “real” acoustic track while listening to the scratch track. I generally record that track on two channels, one from my sound hole pickup and one from a mic set near the sound hole. The two tracks have a bit different qualities and when mixed together produce a much fuller sound. EQ really depends on a lot of things, not the least of which is your particular instrument.
Next comes all the fill stuff, then finally the vocals, harmony, and final mix down.
For the vocals I highly recommend track doubling. It really makes a difference. Basically you sing the track as close to the same way as possible on two different takes and then mix one slightly lower than the other in the final mix. The result is it doesn’t sound like two voices (especially since they are both yours) but the supporting track really punches it up.