Aside: anyone with a .edu, .ac.uk or other education-ending email address can get 5 private repos for free.

Is there anything specifically about GitHub which puts you off, or is it just that BitBucket works so you don't want to change?

I'll just volunteer that BitBucket has worked flawlessly for me for years. Of course I use repos others have setup in Github, but I've never seen any reason to switch.

> Is there anything specifically about GitHub which puts you off, or is it just that BitBucket works so you don't want to change?

The latter + all the hype surrounding the GitHub (thousands of 10-line "Ruby gems" and "JavaScript frameworks" don't help the browsability either). I generally dislike monopolies of ideas/implementations.

> Is there anything specifically about GitHub which puts you off, or is it just that BitBucket works so you don't want to change?

Github has a much worse record vs. Egor Homakov than Bitbucket :)

Also, Github is Git-only, while Bitbucket supports both Git and Mercurial. I use both, but prefer Mercurial myself, despite it being less popular.

GitHub definitely isn't git-only. It supports SVN too, and can import from SVN, Hg and TFS