Should the Electoral College be abolished if it's possible that the candidate with the most popular votes not be elected?

No, because the Electoral College ensures that all States - and not just those with large population centers in metropolitan or urban areas - are important to the electoral process. Without the Electoral College, less populous and more rural states would be ignored and not represented. Furthermore, this nation was not set up as a democracy, but as a republic, and the Electoral College preserves the spirit and values of a republic.