As Ramparts mentions, EE bonds double in 20 years. Otherwise, the interest rate is pretty dismal. So if any are EE, keep them until they're 20 years old. I doubt that any of the 1% bonds are iBonds unless you are not adding the rate plus inflation portions. If you use the savings bond wizard, it'll give you both rates (which you add together to get the combined rate).
Also, remember that if you cash the bonds in order to get more than the 1%, you're going to pay federal tax on the gain. So you'll start with less money. Also, savings bonds are always state and local tax free. If you live in a state with an income tax, take that into consideration if you plan to put the money somewhere else that's taxable.