I voted yes on both - because I believe (in a more spiritual sense) that every living creature is capable of knowing both fear and love. How else do plants grow better when they're spoken to in loving ways?
The thing with snakes is, they don't feel "love" in the way we humans define it. I do believe they can feel it in their own ways, by their own parameters. The problem with love is not defining it for snakes, it's defining it for people! Some say it's a very complex "high" emotion, but I maintain that love is one of the simplest emotions there is. It's made complicated by human reason, ego, and our own complexities.
But I agree with whoever said above - this is an interesting debate, but it can never be settled due to the inability for us to perceive as snakes. Unless one of us can go a la King Arthur in "Sword in the Stone" and become a ball python for a day.