Best Code Review Tool for Large Userbase?

Question

I am looking for a code review tool, which:

1. Should support at least 6000 users.
2. Have integration with GNATS Bug tracking tool.
3. Should have a command-line interface to fetch review data using query.
4. Should support Oracle Database.
5. Should have web-base review feature.
6. Good to have email-based review feature also.

Do you have any suggestions?

Answer 1

CodeCollaborator is nice. Not sure if it meets all your requirements though.