*. Unlike the command-line version, now you can change settings graphically such as - Setting bit-rate, resolutions, cropping, single-dual pass video, etc.
*. Supports a lot of codecs such as - mp3, aac, MPEG, H.264, Ogg Vorbis, Xvid, Divx, etc.
*. Play videos directly from the window.
*. Add lists of files to be converted.
*. Additional advanced options.
*. Supports multithreading (for PCs with more than a one core).
*. Built in presets, etc.
If you use Ubuntu and wondering how to install WinFF, then open your Terminal and issue the below command.
sudo apt-get install winff