But your content needs to be right before all this.
If your site is a turd, you're wasting your time shoving it in everyone's face. People don't like having turds shoved in their face, neither does Google.
Content in my book means everything including your banner, navigation, footer, the works, not just the bit in the middle. It all has to work together to achieve the goal of the site. If it doesn't, you won't get far.