Handling conflicts

Hi

I have a question, what´s the better way for handled document conflicts?. Today I had a doc conflict in an DB. I know that with Conflict Handling Form Property is possible to do something, but I don´t have any experience with it. does somebody can helpe me with it?. I know that exists next options:

Create conflicts (Default)

Merge Confilcts

Merge/No Conflicts

Do not create conflicts.

Thanks a lot.

Regards