And what will she do with that 'experience'? Thats the point you seem to be missing. Her debateable experience hasn't led to her proposing better policies, or backing better pieces of legislation now, has it? As Vex said, Bush's administration team had tons of experience, and Bush himself was both a governor and a son of a President/VP/Chief of the CIA. Fat lot of good that's done anyone, right?
So lets assume, for the sake of argument, she is experienced (though I still have my very clear doubts over that). OK, what does that translate into? Will she propose the same sort of legislation she has over the past 8 years, only more experienced? Well, that's the Iranian and Iraqi people fucked, for starters. Will she pass legislation like the PATRIOT Act (which was based on legislation from her husbands own term as President) more efficiently? Will she ride roughshod over the institutional checks and balances meant to limit the power of the President more effectively?
Also, interestingly and totally off topic, I read McCain was advocating nuclear stockpile reductions as part of his foreign policy. That's likely a good move, and does offset some of his hawkishness over Iraq.