I do wish there was someone more experienced than Palin on the Republican ticket for VP. That being said, she is not unqualified to be President as you and others are claiming. I have never made the case that Obama was not qualifed to be President, just that McCain's experience made him a far better candidate than Obama. My support for McCain is also not just based on his experience but also his judgement which you so often refer to.
In 1991, McCain understood that Saddam's military had to be removed from Kuwait as soon as possible. Joe Biden in the biggest vote of his career at that point got it wrong, and voted against the use of military force that even the French were actively participating in. Joe Biden voted against the coalition that is held up as the standard for one by so many.
In 2002, Obama voted against removing Saddam from power with military force. Saddam would still be in power in Iraq today free of sanctions and the embargo, if Obama had been President in 2002.
Two enormously important issues that Biden first, and then Obama got wrong. No one knows how Obama felt about the first Gulf War at the time, but its most likely that he got that one wrong to and voted with the majority of his party against removing Saddam's military from Kuwait.
Obama not only said the Surge in Iraq would not work but that it would make violence in Iraq worse. Biden wants to split Iraq into three countries. Provided Palin has views that are the opposite of Obama and Biden on these issues, she in some ways is already more qualifed than either Obama or Biden to be President.