This is a preference question.
Both are awesome depending on the user.
I am getting my hands dirty with Node now. It is pretty cool what you can do with it. Also most tech unicorns are moving to Node as we speak. Here is a list to check out the companies that are using it now.
If you are building bots, the best choice for you is Node. It better for async work and a lof of the bot building tools have support for Node. Even more, there are libraries for building bots built for Node