I use mercurial, because it supports HTTPS pushing. Git has had a request for http(s) push for years and hasn't implemented it. My university blocks outgoing SSH access and none of the standard prescribed solutions work. Its quite easy for someone with a job to say - "Get a VPS and tunnel through it", but I can't afford a VPS, so git has barriers to entry, and until that is reduced I will stick to my LiveJournal.

You should switch to Windows again, you'll receive the enormous benefit that everyone you know uses the same OS.