i don't really think there's any sort of test you can take because it boils down to what YOU want from your car
my decision was easy as the rest of my fleet was black i had to have matching vehicles so black it was
but that being said i know the downside of owning black vehicles all to well and how hard they are to keep clean.
silver is probably the best colour to hide the dirt
maybe go through what kind of accessories you are thinking of adding to the car to make it your own (rims, decals, lighting etc) and use that to help in your colour decision making process
just remember that at the end of the day this is your hard earned money going to pay for this car and you are the one that needs to be happy with it
welcome to alberta we eat cow, drill oil and rope calves
wants to push you down a flight of stairs to see if you are like a slinky or if you bounce like a ball... either way, I am quite sure I will be amused