I definitely teach MS technique, and my students seem very enamored with it. Here they used an AKG 414 in cardioid (though it could technically be any pattern) for the mid mic and a Royer R121 for the figure 8 side. They sent the mid mic to a track and panned it center and the side mic to two tracks panning hard left and right and then phase flipping the right channel.
Though, I rarely use the technique in my professional work. Where do you find the MS miking technique useful in your work?