Don't get me wrong, Facebook can be bad, but I think Facebook was primarily bad at the personal level. It performed adverse psychological experiments on its users and it leaked data. Twitter is I think bad at a large scale because it's created a global shouting match while implementing ridiculous and often unspoken rules for the sake of protecting the establishment.

At least you can sign off of Facebook and never use it again. Twitter, on the other hand, is given such undue power over the flow of information and intercultural sentiment, and news from both the mainstream and the digital outskirts reference it all the time. Whether I have a Twitter account or not, I can't avoid it, because mere tweets make the news constantly. I'd say that Twitter is far more influential than Facebook at this point.