title: Which Wiki text syntax or Markdown to use?
body: <p>Working on my personal knowledge base... I want to format my documents, even on local hard disk in wiki syntax. Sometimes I would upload them to a (corporate) wiki, sometimes I would download them from there. Planned are some tools to support this flow and searching my knowledge base (documents) for later. Obviously I want the markdown to be compatible with most, minimising conversion work. </p>
  
  <p>So my question is similar to <a href="https://stackoverflow.com/questions/4008212/which-markup-language-markdown-or">this related question</a>, but </p>
  
  <ul>
  <li>What wiki text version or Markdown (dialect) should I use when I start something new? (i.e. documentation project and kind of wiki). </li>
  <li>What are the most wiedely used/recognized ones?  </li>
  <li>And where is tool support (editors and or libraries) best? Concerned prog. languages are Java, Ruby, Scala.</li>
  </ul>