Calling for opinions

I've finished the main top with my "Almost Amish" blocks.  These were obtained from a swap a couple of years ago.  The rules were to make traditional style blocks, in solids or "read solids", with a solid black background.  I had 24 of them (9.5" unf.) which I set them straight with black sashing and cornerstones.   I still have to add a plain black border so the top "floats" and at least one more border of 6.5" or so.  Finished size will be a generous throw -- around 56" x 80".

Here are some possibilities for the outer border (6.5" unf.), pulled from stash:. I will likely make corner 6" x 6" corner blocks in the same style as the main blocks.  Click to enlarge so you can see details of the options:

The stripes are small rectangles in this one.

Here's an actual multi-colored stripe.

Or I could piece a "piano keys" border from tone-on-tone scraps.











The quilt is a wedding gift for the daughter of a colleague.  I don't know her well and have only met her husband briefly.   According to her father, they have rather traditional taste -- nothing overly fancy -- and her favorite color is purple.  There are a number of blocks with purple as the sole or the major color and I think I'll bind it in purple, no matter what border option.  

Please leave a comment with your thoughts about these options -- or if you have another idea, I'd love to hear it!