Watch the New World Roll online guitar lesson by Vicki Genfan from 30 Strumming Patterns You MUST Know
This one uses the open tuning D-A-D-G-A-D. The chords are Bm9-Em9-Asus-Dadd4.
This is a very full, flowing strum and can be used in any kind of music from country ballads to rock, pop to singer-songwriter. I'm using the roll on every chord but you can use it more sparingly, as a way to bring a new dynamic to the progression.