Jackson made a fuller use of the veto power. Other presidents had only vetoed bills that they judged to be a violation of the Constitution. Jackson vetoed bills that he found objectionable for other reasons.
Andrew Jackson was the first to attract attention with his appointments. Earlier presidents also gave appointments to friends and supporters, but Jackson had a whole new set of supporters and replaced the old ones made by other presidents with his own.
They loved him. They loved him. He was their hero, because he was one of them. In their eyes Andrew Jackson could do no wrong. With the exceptions of George Washington and a few other presidents, Andrew Jackson was easily the most popular president.