Which are most rewarding to work with and why?

[Rox6or]

Please indicate which is the most rewarding for you to work with or care for and leave a reply as to why. (Under colubridae I am referring to venomous snakes in the family specifically.)
Thought this might be interesting to see.

[Ruan Stander]

I personally love Old World vipers, and they are the only venomous snakes I have kept. They are the most beautiful to me, that's the main reason. They are lower maintenance than elapids I would imagine and display brilliantly in a natural set-up.

I think many might go with elapids because of their intelligence.

[Rox6or]

Predator678, thanks for the comment. Well I agree with the beauty of the vipers and the intelligence of elapids, but I really like the colubrids like the asian vine snakes, unfortunately I never owned any and doubt that I ever will and guess that is why to me they seem the most rewarding.