Google has updated its Takeout interface and it's now much easier to download all your data stored by Google's services including Google Drive, YouTube, Blogger, Google+ Photos, Contacts, Hangouts, Location History and more. The service supports 17 Google products. So if you are thinking of switching to Microsoft's cloud services on Outlook.com, it's the time!
Click on "create an archive" and Google will select all the products that are available and shows the size of the ZIP archive you can download. Archives larger than 2GB will be split into multiple ZIP files. The contacts and Google+ circles data can be imported as CSV, HTML or vCard.