While I have not owned either of those two particular tires, I have autocrossed a car on the Dunlops, and I've owned a set of Kumho XS and a set of Falken Azenis RT-615s. I've also owned Hankook R-S2s, Nitto NT-05s, RE050As (the OEM MS3 tire, of course), and various other (mostly discontinued now) tires in the the same categories (various levels of "summer tire").
That Car and Driver article says it all right at the beginning of the section about the Dunlops:
In terms of raw dry performance, it simply isn't fair to pit tires that are basically engineered for autocross and light track duty (the "Extreme Performance Summer Tire" category) against the other high performance street tires.
The line is beginning to blur a little bit, but I have a feeling that as that line gets blurrier the "Extreme Performance" tires will again raise the bar.
Of course, I'm sure one will see markedly better treadlife out of the Hankook v12s than the Dunlops, so if that's really important to you it should definitely be factored into your decision.
I don't really think you can go "wrong" either way. It just depends upon what you want out of your tires.