How to choose a transport(terrestrial/subsea)

Thank you everyone incredible amounts of responses for my how to choose a transit provider smail earlier. How do you choose transport & backbone? Looking at key aspects like route information, diversity, aerial vs under ground fiber, age of fiber, outage history, length, but what else? I will get both transport and transit as two seperate blogs. I will also submit as a nanog paper for the meeting after next, or maybe next? I am probably too late by now. Thank you for all your help. I will add your names to the thank you line ;-) -- Mehmet +1-424-298-1903