Want consistent results? Use templates. After Effects comes with several built-in templates that addresses several of the more common production needs. After Effects offers both render setting templates (for establishing quality, resolution, and duration) and output module (for defining file formats). If these built-in options don't do it for you however, you can easily create your own.
Choose Edit > Templates> Render Settings or Output Module .
Click New to create a new setting or Duplicate to modify a copy of an existing setting.
Modify the settings to match your needs. When finished click OK.
If you'd like, you can choose one of your settings to be the default.