I'm genuinely curious, what do you like better about bitbucket?
Bitbucket has much better review tools - hierarchical comments, approve button, side-by-side diff (GitHub has added that recently).
You can see commit log as a "graph", not just a simple list. It's easier to identify merges.
And it does not charge for personal private repositories.
AFAICT they haven't, at least i don't see any way to upload release tarballs. they certainly let anybody download tarballs generated for any annotated tag. but those tarballs are not immutable! once in a while, these tarballs start coming down with different hashes, presumably as github changes the code which generates those tarballs. that makes them less than ideal as package sources.