Well, there are many. You know, like her actually having executive experience before she appeared on the national stage–and actually taking on corruption in her party. Ace identifies another one–perhaps the one which prevented her from looking as good in interviews during the fall campaign as he did:
As I said ten times during the campaign, Barack Obama is just Sarah Palin plus six months of briefing books and town halls.
Given how quickly she had to master the questions facing candidates on the national ticket while campaigning for the Republican ticket, while nursing an infant, while raising children, that she had so many fewer gaffes than her rival for the Vice Presidency, who had far more time to prepare is simply amazing.