What's a good tool for Project Management?

I work with multiple software teams and they're all using different tools for project management. I'm curious what project management tool people prefer, and why.
Enterprising Josh made this product
If you are looking for something free, but more powerful than Asana, Trello and others, Bitrix24 is a good choice. Gantt, time tracking, tasks, subtasks, client access, task to email/email to task, quotes, invoices, etc.
CommentsTweet