Hi,
1) It does NOT qualify as an ugly quilt.
2) I vote for white sashing with the blue outer border.
But, I got to thinking why you might think it was lacking something, while not ugly, it doesn't have the "zing" that some quilts have. Which blocks do you like the most? My eye is drawn to the blocks that have the greater contrast. Several of the blocks are a light medium with a medium and kind of fade together. This is one of the lessons that I continue to work on. It can help to look at your fabrics in the dark soon after sundown. This may sound silly, but your eye will see the value (how dark/light) more instead of the color.