Looking at how the blocks are made, I don't think you want your straight quilting to interfere with the curves on the geese (it looks like you did the cathedral window roll-back already?). So I would stitch in the ditch along all the straight seams. But NOT across the geese. Lots of starts & stops if you do that however.
If you want heavier quilting then that, then maybe a diagonal cross-hatch? Again I would avoid quilting the triangles, however.