I can't say Steve Jobs' masive approval rating surprises me. If you don't believe Steve Jobs is the second coming of Christ, you won't last very long at Apple.
As for Intel, I've heard Paul Otellini has a cubicle on the floor with all the other common employees at Intel, and that no VP or Cxx gets a fancy corner office or special parking space. That's really got to help his ranking.
I'm honestly surprised that Steve Ballmer ranks so low. I guess not as many people at Microsoft drink the cool-aid as I thought. The guy is rather abrasive, so its easy to understand how he could rub employees the wrong way.
This makes what, 3 CEOs gone from HP in the last 5 years or something? The last one quit after that scandal about snooping on board members to see who released super-secret HP documents. HP really needs to find a good CEO to save face. Someone that can win over investors (and apparently employee) trust once more.
Michael Dell? I didn't realize he was still in charge there. I wonder where is dissaproval comes from, continuously getting slapped on the wrist for anti-competitive practices or lying to customers and selling them faulty equipment? Maybe its the fact that they ship all their tech support to India? Oh wait, that's why consumers don't like Dell, I don't know what employees have against him.