Why git is better than X
I more or less settled on git, but I think he's being glib with some of these points. For instance 'easy to use': many git commands require --funky 'options' -t -o get the desired results, whereas that's rarer with svn and systems that have taken that approach.
Github - really? I just can't imagine Github being nearly as important to git adoption as some of those other points. It's a slow, clunky interface to a fast VCS.
Has darcs just disappeared off the radar? I'm using it for all my projects, though I'm not sharing wih anyone else, so I've never come under pressure to switch.
There is some interesting discussion here: http://news.ycombinator.com/item?id=381920
My take from that chart is that if git was actually easy to use, it would be as good as svn. whoopee!