I really, really like this apparent arms race between bitbucket and Github lately. It might just be observer bias, but both seem to have put in more and more features since bitbuckets big revamp (which imo made it actually usable).
I love Bitbucket. I love the fact that they provide unlimited private repo hosting for free. Only thing I would like to see from Bitbucket is the comprehensive stats aspect that Github provide.
I use confluence for work and it's absolutely dreadful! BitBucket is a AAA piece of software, better than Github hands down for me. But Confluence seems like it was outsourced to a shoddy backwater software developer.
This is a tad annoying when writing comments with indented code blocks, since it pops up with every `@` you write, which in Coffeescript or Ruby can happen frequently. Great, otherwise.