Am currently participating in only one signature campaign now. What I do mainly is article writing which I also use it to get some tokens from some projects as well. I prefer doing article and signature bounty
Article bounty is good. Often most part of bounty pool stands out precisely on article campaigns
At the moment, I work in 20 bounty. Very rarely take TW and FB. I mainly write articles about projects. For me this is the most interesting, and the reward is the same. When you write about the project, you better understand the idea.