Whitney is certainly more dangerous than Half Dome. I'm not familiar with the others on the list (although they all appear to be more dangerous than Half Dome). As scary as the cable can be to many people, that actually makes it safer as people are extra cautious. Besides, the cables are only open when there is no snow. With Whitney, people tend to underestimate it and take chances to bag the summit. And then there is the altitude to cloud one's judgement, plus the likelihood of hiking a portion of the trail in darkness. There's no comparison really.
