His public persona neither exhibits nor exudes any of that. Labour severely underestimated him - and is still paying the price.
• John Armstrong is Herald political correspondent.
Claire Trevett: Give him a hat, and he'll put it on, put on the music and he'll dance, give him a microphone and he'll sing. John Key can be a buffoon. In fact, sometimes he goes out of his way to be a buffoon. There is a very good reason for that, and it shows in the polls every month.
His show of a good-natured, even-tempered, self-deprecating personality is one of his most potent weapons. It makes him seem approachable, and that helps explain why his personal ranking is so high above his party's popularity. It also blurs the fact that he is wealthier and more powerful than most voters. If his Government is having a hard time, the next time he gives a speech he'll get in a self-mocking joke about it, a tactic that simultaneously acknowledges the headache it is causing him while getting across the message that it is not as major an issue as is being made out.
Counterbalancing that is his eloquence on the economy. His grasp of that is critical to engendering trust in voters.
His political antennae are finely tuned - and if they pick up something the voters don't like, he'll call out "abracadabra" and make it disappear.
His sense of humour is his most underestimated asset. Voters get bored of leaders - it is one of the most corrosive factors on their popularity. Only tyrants and comedians can slow the process of that boredom. Labour cannot abide it, and that alone shows how powerful Key's persona is.
If it was not aware of that, Labour would not devote quite so much of its time deriding him for it.
• Claire Trevett is Herald deputy political editor.
Liam Dann: As the Bill Clinton campaign slogan said: it's the economy, stupid.
People vote with their pockets even when they are complaining about myriad other issues.
Of course, in theory the economy is stuffed.
What seems to be confounding many on the political left is that they are getting so little traction from what are clearly difficult times.
Factory closures, receiverships and job cuts are a regular feature of the news. The dollar is too high, and exporters are hurting.
But take a look at the flip side of this grim scenario. Interest rates are at record lows, every time a mortgage holder heads back to the bank they walk away with a better deal.
Meanwhile the value of house prices is still rising.
Inflation is also low and the high dollar keeps import prices low.
It is a good time to be a consumer.
No one wants to say it out loud, but for a big chunk of middle New Zealand - homeowners with some job security - these are relatively benign times.
Ironically, if the economy starts to grow faster the Government will come under more pressure as rising interest rates and inflation start to put the squeeze on household budgets.
• Liam Dann is Herald business editor.