Finally ready to remove my Win7 partition on my Ubuntu Gnome system. I have 3 internal drives with music, movies, and pictures that I will be backing up and formatting. Should I format all my drives to ext4 from now on, instead of the good old fat or NTFS ?
Ext4 is Ubuntu's default and supported filesystem. If you're going to use your drives only with Ubuntu or other Linux systems, the answer is yes: The best choice is formatting them as ext4.
But you need to have in mind that some systems (such as Windows) do not support ext4 natively and you may get into trouble if you need to install Windows some day.