Databricks Repos provides better version control and collaboration features compared to an external Git provider, making it the ideal choice for all machine learning projects.

An external Git provider is always the best choice for version control and collaboration, as it is more widely used and supported by various tools and platforms.

Databricks Repos and an external Git provider both have their own advantages and disadvantages, and the choice depends on the specific requirements and preferences of the team.

Databricks Repos and an external Git provider are the same in terms of version control and collaboration features, and there is no difference in using either of them.