LINQ TO SQL or Entity Framework 4 Code-First for a domain driven project?

At the actual time, what would be better to use for a domain driven project ?

LI开发者_StackOverflowNQ TO SQL or Entity Framework 4 Code-First ?

Thanks.

---

First of all EF CTP5 released last 6th December, link is here

We changed our projects repositories and services on CTP5. It is working fine. We are working on 3. sprint of our projects and there is no any issue.

I strongly recommend CTP5 for DDD, and also for any other types of projects.