This one, of course. Livan's pitched 6 innings, 3 runs. If he quit now it's a QS.
What if you go 9-4, is that a QS? That's better than a 6-3, more innings with a lower ERA.
True but you cannot yield more than 3 runs and still be credited with a QS. That only illustrates the futility of the stat. It's only meant to give pitchers credit for doing as little as possible.