What Are the Conflict Resolution Rules Used by Marketo When Synching with Microsoft Dynamics CRM?

Our sync employs a field level conflict resolution mechanism. For a particular record, if field X is updated in Microsoft Dynamics CRM and field Y is updated in Marketo, then we will update Marketo with the new value for field X and Microsoft Dynamics CRM with the new value for field Y.  In the case where the same field is updated on both systems for a particular record with a short period of time, we will choose the Marketo value as the winner for Leads and the Microsoft Dynamics CRM value as the winner for Contacts.