“One of the problems with a 529 plan is that you must give up an element of control. The best 529 plans available, and my second choice to an ESA, is a “flexible” plan. This type of plan allows you to move your investment around periodically within a certain family of funds. A family of funds is a brand name of mutual fund. You could pick from virtually any mutual fund in the American Funds Group or Vanguard or Fidelity. You are stuck in one brand, but you can choose the type of fund, the amount in each, and move it around if you want. This is the only type of 529 I recommend.”