Originally Posted by
true4uca
Seems I remember reading somewhere (probably here or Quiltville) . Borders 3 inches or less look better joined on an angle, wider borders joined with a straight seam. So that as always been my general rule of thumb unless my amount fabric tells me otherwise.
But what "looks better" is in the eye of the beholder! So that's the opinion of the author, but I don't necessarily share it.
As a quilter, if I saw a diagonal seam on a border it would probably draw my eye, because I would be wondering why the quilter went to the extra effort to put a diagonal seam there!