Both are great ways for promotion, and the good thing is we have plugins for both, the Voting Button and the Top Stories Widget, and both of the plugins are fully customizable to give you the best use, and specially the top stories widget, it’s pretty cool and easy to use, and you can simply change it’s colors to match your blog theme, and also decided which category you would like the widget to show, means more control. You can choose a category depending on your blog niche.