Pretty quilt, but you are right it is busy and no quilting will really show so I would do an end to end, like a pantograph. If doing yourself on a domestic it all depends what your confidence levels are. An all over meander is always super easy. So is an all over grid (cross hatch, diamonds, etc) and can be done with a walking foot. IMHO you can never go wrong with the Baptist Fan design. It seems to play nicely with just about any quilt and always looks good.