Tartan blocks for next quilt cover.

I've started sewing pieces together for the blocks for my next Oz Comfort quilt top.  I'm following a pattern in a Patchwork & Quilting from 1998, which has fabric cut into 3" x 7" strips then sewn together to make blocks which are then joined by sashing.

I've made about half the quantity I need for my quilt top and laid them out on the floor last night in different configurations, to see how they looked.   Here are three ways of doing it; I haven't made up my mind yet.