I like both because I love both of their old ancient series. I like how TVB did those Jin Yong's(?) adaptations and I especially love ATV's vampires and ghost series. I don't recall TVB producing any vampire story series at all, but I like how ATV has the "Nam Mao Bac Ma" stories. Either way, I only enjoy watching the 80s and 90s series because those were and most likely will always be the best.