I made for OCT 2017 a number of MCU Supernatural character idea videos, and for Ghost Rider I said the first season should star both Blaze and Reyes, but Reyes should be the first one to join the Midnight Sons. When talking to my friends they feel about the same that Blaze and Reyes feel like deciding between Jordan and Stewart for the Green Lantern DCEU that both are so popular you will need to use both, though the one to first off join a team should be the one who can play off the characters and actors also included.