For HTML generation Markdown is much easier for most people to get used to and understand. When needing to provide output in various formats reST is more suited but also have a bit of a steeper learning curve.
It depends on what you're doing. For documentation I'm always running reST but for articles for sites etc (with a static site generator) I will turn to Markdown.
It depends on what you're doing. For documentation I'm always running reST but for articles for sites etc (with a static site generator) I will turn to Markdown.