Jeanne... I've used both with no preference, both fun. You asked for any tips.... when you get near the "tips" of the square, use a strip larger than 1 ½" so you don't get too much bulk in your joining seam. Some of mine have pretty small little pieces near the edges. I'll post a picture of a care quilt (used paper foundation on this one) just to try to show you what I mean. [ATTACH=CONFIG]503576[/ATTACH]
You see where the blocks come together to form a square in this setting...lots of little pieces.... and I used all different widths of strips with no plan which one came next.