As a landscape/city photographer, I usually spend a LOT of time on set-up and less time on editing. For non-people shoots, it should be more about the setup.
When shooting nowadays, I primarily shoot in infrared, because you can either get white foliage (HERE (http://kalbaxecnailla.deviantart.com/gallery/#/d240n8t)) or get ultra-long exposures during daytime (HERE (http://kalbaxecnailla.deviantart.com/gallery/#/d1hvtsw)). Infrared is a LOT of set-up, though my Nikon saves presets so that makes things a little faster. Infrared is then about 55% setup and 45% editing; in order to get that characteristic infrared look, you HAVE to be able to edit it a lot, because right out of the camera, it doesn't look very good at all. But that's the way infrared is supposed to be.
With regular landscapes, I usually do longer exposures anyway, and during the daytime, this requires a lot of filters and crap (don't you love my technical terms?) to be able to get the right exposure. Again, it's mostly set up, but with a little post-processing: fixing colours, adjusting exposure, etc.
tl;dr set up as much as you can so you have less to edit later--let nature do the work!
no subject
When shooting nowadays, I primarily shoot in infrared, because you can either get white foliage (HERE (http://kalbaxecnailla.deviantart.com/gallery/#/d240n8t)) or get ultra-long exposures during daytime (HERE (http://kalbaxecnailla.deviantart.com/gallery/#/d1hvtsw)). Infrared is a LOT of set-up, though my Nikon saves presets so that makes things a little faster. Infrared is then about 55% setup and 45% editing; in order to get that characteristic infrared look, you HAVE to be able to edit it a lot, because right out of the camera, it doesn't look very good at all. But that's the way infrared is supposed to be.
With regular landscapes, I usually do longer exposures anyway, and during the daytime, this requires a lot of filters and crap (don't you love my technical terms?) to be able to get the right exposure. Again, it's mostly set up, but with a little post-processing: fixing colours, adjusting exposure, etc.
tl;dr set up as much as you can so you have less to edit later--let nature do the work!