I prefer the knit fusible. Cut the motif a little larger than the finished block you want to show in your quilt.
The tees stretch right to left. Iron the fusible top to bottom to stabilize the knit. Once it has cooled, then cut the block to size. No rolled edges, they lay down and behave. I also use sashing to help hold the shape of the block/quilt and I tie the ones I make, although the sashing could be quilted.