Maples also drop seeds in the spring(whirlybirds) that can also make a mess.I have red maples in my yard but they are not street trees so the mess isn't a problem. I do LOVE the red fall color.
I would NOT plant ash trees. There is a pest that was first found in Michigan that had come from China. They love ash trees & will kill even healthy trees. They have not yet found a way to stop the pest & are telling everyone not to move firewood & not spread it. It is already in other states including mine-Indiana. It is called an Emerald Ash Borer.
Gloria