First rule of languages: Languages are not logic. If somebody tells you that their mother tongue is more logical than language X, it's in most cases just bias of the native speaker who is not aware of the difficulties.
Second rule of languages: There are no easy or hard languages. Whether a language is easy or difficult to learn, depends entirely on the languages you already speak (and, of course, the environment, e.g. whether you have access to learning material).
(edit) Big exception: Writing systems. Learning 5000 Chinese characters is objectively harder than learning how to read Spanish. Unfortunately, a difficult writing system has also a negative impact on speaking skills because it hinders you from quickly extending your vocabulary by reading books etc.