>>58593860Much better in concept, only slightly better in execution.
Megas have an issue of being tied to the base form entirely. The only way to access it is to see the original, often better looking, base form, before clicking the button to see a long ass animation just to become ugly.
Regionals are entirely separate from their inspiration; it's almost like Volbeat / Illumise levels of separation.
The problem with regionals in execution is that a lot of them seem to be "wouldn't it be funny if-" and then that just becomes the whole design. There's not much believably that many of them are fantasy creatures in the world anymore.
Don't get me wrong, they have a higher design success rate than Megas of course, but not by as much as you'd probably think.