Other than a peak on the proofing function of photoshop before deciding if you will sen the file to your printer processed as either rendering intent.
Do you have any other general criteria that may push you towards one or the other? Do you see a certain area of the image coming alive more in one or the other intent?
Gloss or matte finish seem to make you lean towards more often to one intent than the other one, maybe?
Do you see a certain kind of papers benefiting more from one of the rendering intents than the other?
In my own workflow, once the digital work is almost complete, I switch the softproof view from one to the other, in my case what normally seems to make the case is detail in the deepest shadows.g The interesting thing is that sometimes, I find similar images, to be printed both in the same paper, seem to look better in different intents, like image 1 in Perceptual and image 2 in Rel. Col.
Just happened with two images I shoot in Joshua Tree Nat Park, that's the trigger of this question.
Hugo