Not sure if this has been posted before but its a good comparison between

Not sure if this has been posted before but its a good comparison between Slic3r and KISSlicer
http://www.youtube.com/attribution_link?a=js88o8fTZok&u=/watch?v%3DHmM_f3v-zh0%26feature%3Dshare

Someone needs to do these tests again. Slic3r has changed a lot since last March.

I have to say I’ve not tried Slic3r but out of the others I’ve tried I much prefer KISSlicer, I find the interface much easier to use and its also much faster.