At regular zoom level, they are at least very close and possibly identical. The more you zoom, the better the last one looks in comparison. BUT - your first one should look every bit as good when viewed within game courier because that is rendering the SVG directly (if I understand correctly). By taking a screenshot of it you have rasterized it, losing the benefits. So #1 should be every bit as good as #3 in practice.
At regular zoom level, they are at least very close and possibly identical. The more you zoom, the better the last one looks in comparison. BUT - your first one should look every bit as good when viewed within game courier because that is rendering the SVG directly (if I understand correctly). By taking a screenshot of it you have rasterized it, losing the benefits. So #1 should be every bit as good as #3 in practice.