Agile Project Management
Requirements 1. Import 2. Requests, Features, User Stories 3. Prioritization, Rank
Plan 4. Releases and Iteration Planning 5. Assign People Everywhere
Track 6. Reports 7. Time Tracking 8. Source Code Integration
Quality 9. Integrated Bug Tracking 10. Tp.Tray (Bug Submission Tool) 11. Integrated Test Cases
Customizability 12. Development Process Customization 13. Workflow Customization 14. Roles 15. SOAP Web Services and Plugins APIs
Usability 16. Inline Editing in Lists 17. Quick Actions 18. Dashboard 19. UI Vanilla

Prioritization and Ranking

Each assignment has Rank that represents absolute importance. It is clearly visible in ToDo list what should be done first.

You may prioritize User Stories and Bugs in scope of release or iteration.