Apple

According to the Harvard Business Review, Steve Jobs is the “best-performing CEO in the world.” As the article says,

Our data highlight the great extent to which CEOs account for variations in company performance, beyond those due to industry, country, and economic swings. That drives home how important it is to use objective, long-term measures to assess CEOs and to inform CEO searches and succession planning.

Apple’s stock has risen a great deal under Steve Jobs’ reign, especially in the past year (though to be fair, it had dipped a great deal from a high in mid-2008, losing half it’s value), and is currently at its highest ever.

It’s true that, under Steve Jobs, Apple has introduced a number of ground-breaking products, and has turned the company into a major media retailer with the iTunes Store. This recognition, from the business school community, shows that Apple’s performance is, indeed, exemplary.