<p>hkkid2014:
JS has been involved in virtually every cheating scandal in Korean test prep history. That said, he was indeed very popular a few years ago, but doesn’t dominate anymore. JH was successful here for a while but hasn’t been in the market in any meaningful scale the last 4-5 years and the market has moved and changed (advanced, honestly) quite a bit since then.</p>
<p>I’m with CHD2013.</p>