Bitbucket

Pros

Bitbucket is private repository with lots of feature and multiple language support.
In my daily use, I mostly commit Java applications using the scrum board.
I have used the cloud version for almost three years. In my previous company and now at my current one.
One of the best features is the code review following the git flow workflow. You can select the source and target branch for the pull request and you can select default approvers as well as define your own one.

Cons

The project administration, especially the setup of the permissions for a particular repository tends to be quite hard. And when you try to contact support, usually there is no help at all and you end up researching on forums to be able to find the answer you're looking for.
In this kind of software, especially if a company like Attlassian is behind it, the support should be better.

Pros

I like how robust their website is on terms of pull requests and integrations with JIRA and other atlassian products. You can store private repo's and manage it. The pull Request feature is the strongest in my opinion, with reviews and linking to JIRA. So it automatically can close tickets once you merge/accept a pull request. If you link the commits with a JIRA issue it also updates with them. They recently simplified the UI and their own home made SourceTree Visual App has received some substantial upgrades over the years and it's one of the best tree-based git history apps out there. In all honesty, it's a simple git control hosting website you can use online or host by yourself. It's really good.

Cons

The UI used to change a lot but now they've settled. Sometimes, compared to github, processing big pull requests (loading the changes/previewing) can be a little slow. Sometimes the integrations with JIRA, can feel like a miss if you don't use it, because Github has a lot of those features that Github might miss.

Pros

First of all, BitBucket UI is great. It's minimal, it's crisp, it's well though of and it's beautiful. It looks great and simple and gets you to do the common action while pushing and managing code in your repo fast and with as few clicks as possible.

Cons

I would love for some customization of the sidebar. If I could move it to the bottom/top of the screen that would be nice.

Pros

I like the auto-tagging of JIRA issues with code commits on PR. The bare minimum requirement for a functional version-control system is fulfilled.

Cons

Github has started supporting multi-line commenting on PRs. I don't think I can find any dev who won't like this feature.
It also has a colorful README rendering along with build and test coverage tags. I don't care much about README renders but am out-of-the-box CI integration with Jenkins can help in outputting data about many useful tags like code test coverage, code standards, reference available or even licensing.
There are many extensions built around Github to augment the experience, one in particular that I like, called OctoLinker, has the ability to link the imports with original source code repository. This could be a useful feature in source code view.

Pros

Intuitively and ease for settings and tweaking. When we have a new team member, 15 seconds are needed to add it and voila he's good to go. The projects itself are enough complicated so we don't need more complications from our tools.

Cons

Keep things and menus as simple and clean as possible. Power users will find a ways for their needs even if their menu are a little beep hidden / deeper than expected.