Transferring to BH will undoubtedly force you to become an immoral, gy farming/afking twink and the 19's community will hold you responsible for the downfall of our beloved bracket.
I would stay on your own realm personally. Only reason i would ever go to BH is if i was recruited by a guild there, which i dont plan on competitively playing 19s like i used to, but transfering there in hope of starting a new guild is hopeless.