I thought of doing a vote here, but too many possibilities to list.
My thought here is what snake species do you feel, or own, that has the most "personality." Not favorite, not most beautiful, but most "personality."
I have three snakes, a BP, a BCI, and a Corn Snake. I love them all and they are all beautiful and tame. However, my BCI, recently acquired, seems to be the best combination of docile, but inquisitive. She's interested in her surroundings, and when being handled, likes to move around, but in a seemingly focused and purposeful manner.
So I would have to say that my Boa has the most personality of all my snakes.
Would be interested to see what other people think.