There are a few things to consider when answering this question: the type of shoes, the size of your feet, and your personal preference.
Assuming you are talking about sneakers, they are generally easy to put on and take off. The exception might be if you have a very narrow foot and the shoe is on the larger size; in that case, it might be a little more difficult to get your foot in. As for taking them off, again, it depends on the shoe and your foot size. If the shoe is very tight, it might be difficult to get your foot out. But in general, sneakers are easy to put on and take off.
If you are talking about dress shoes, it depends on the shoe. Some have laces and some don't. Some have a zipper, some have a buckle. But in general, dress shoes are not as easy to put on and take off as sneakers.
It really depends on the shoe and your foot size as to how easy it is to put on and take off shoes. In general, sneakers are going to be the easiest, followed by slip-ons, and then dress shoes.