I've got about 3GB of stuff on my Ubuntu machine that is also synced to a cloud account because it's stuff I'd rather not lose in a disaster. I'd also like to do a periodic copy to a USB stick 'just to be sure'.
What's best? I only use Windows for gaming and do everything else in Linux (not just Ubuntu, but other Debian based distros and also Fedora).
I'm not too worried about what's fastest between FAT32, ext2, ext3 or ext4. I'd only be refreshing the backup about once a month and want something that's reliable from a file system point of view.