I like the on-point version too, though both are nice. I often quilt the sashing first on the longarm (whether in the ditches or just within the sashing), to secure the shape and size, then go back and fill in the finer quilting in the blocks. I would also be likely to do that if quilting on a DSM.
However - if you're quilting the sashing first on a longarm and it's the on-point version, you will not be able to get a long straight run through the sashing without either rolling the quilt or zig-zagging. Plan your quilting so that you can zig-zag rather than roll, roll, roll.