I definitely prefer the canon version of events as it seems much more fitting for Bane. Arkham Knight was good, but his thing wasn't about killing other villains, it was about recruiting them, so killing Bane seems unnecessary, and just seems like some convenient writing.
Bane had control of Santa Prisca previously, and it seems very fitting for him to take care of a drug cartel that's hurting his people. Much much more satisfying ending.