Have you ever been in an alliance led by Ivan? Just curious.
EDIT:
Since im going out I will attempt to answer your question better. If you want to know why everyone loves Ivan you should ask yourself; because its you and the rest of the cyberverse that enamors him so much, why else would you bring him up? If your suggesting that the New Sith Order is merely a personality cult of Ivan you would be mistaken. His position as emperor is as entrenched as mine, which is to say not at all. As for being a good leader, Ivan may not be well versed in the X's and O's of CN but he damn well knows which people do and who is best for each position in the alliance. The challenge system, arguable the most brutally efficient system of government in CN, exemplifies this. But to truly understand you would have to work under him and watch the man goto work; he cuts through the internal politics like a knife through warm butter, demanding results of which he almost always receives.
However judging by the level of goading you have put forth in this thread and others, i doubt your question is a serious one.