Those who have been helping Romney make up his mind say there are three factors in favor of a run, and two factors  against. The main rationale on the “go” side is Mitt and Ann Romney’s strongly held conviction that no one in the current field would make a better president. Critics in both parties and the press may scoff at this view, but the Romneys believe it to their core and thus feel Mitt has an obligation to his country to once again shoulder the mantle. Following his crushing defeat in 2012, Romney has deemed Obama’s second term an utter failure, particularly on issues of national security and the domestic economy. Furthermore, those in Romney’s orbit are convinced that Mitt is not just best qualified, but almost uniquely qualified to turn around the nation and help guide the world to safer pastures. The Romneys consider this assessment a clear-eyed, rational analysis of his skills as a manager and a leader, augmented by the sense of duty he was raised with in the Mormon faith…

[T]hose familiar with Romney’s thinking now and over the years say that he has held a jaundiced view of the former Florida governor dating all the way back to his handling of the Terri Schiavo case, and has come to see Bush as a non-entity in the 2016 nomination contest. Romney is said to see Bush as a small-time businessman whose financial transactions would nonetheless be fodder for the Democrats and as terminally weighed down with voters across the board based on his family name. Romney also doesn’t think much of Bush’s political skills (a view mocked by Bush’s camp, who say Romney is nowhere near Bush’s league as a campaigner).  Romney also considers Bush the national Republican figure who was the least helpful to him during his last run for the White House, a position that has darkened Ann Romney’s view of Bush as well…

Romney’s league of senior advisers act stumped when asked about the competition.  They often cite Rubio on some scores, but don’t think he has the experience to win the crown in the end, especially since he would be attempting to follow Obama, who, when he first ran, was also young and relatively inexperienced.