If I go by what I have and worked with, I have a few
I have a female Blood that I swear sits and thinks of ways to bite me.
I also have a ATB that will chase me out of her cage and I find that weird lol.
But If I go by what I have read the Cobras and Mambas seem have the brains in the snake world. But Croc Monitors will give them a run for there money if we merge in the lizards