I thought the beginning of the original series was better then OVA's but after seras became a vampiress the OVA's were better. Alucard completley trash-talked the first vampire (priest) in the original he had some epic lines. Really showed off Alucard's excellent voice-acting (Imo)
"You act more like a Parasite (Filter...wouldn't let me use ****roach -_-) then a proper Vampire. Left on your own you would cover the world in filth."
"You are a fool who creates slaves to do his dirty work. A coward and an incompetent incapable of doing anything on your own...You aren't worthy of the lowest pits of Hell."
"I cant stand your kind. You don't even have the self-respect to be a vampire you undead maggot, you barely know what you are."