Earlier quoted context omitted.
Korean's alphabet is simpler than both you listed imho, but that's just my take.
I disagree, because the Korean alphabet requires composition of glyphs Arabic has some marks and different start/middle/end forms but it is simpler
It's an "artificial" alphabet, meaning that it wasn't born organically over hundreds of years but created by a group of koreans. It's very simple by design, as it was created to allow the general populace to write and read (until then they were using some kind of chinese dialect, too complicated for those in the working class).
Case in point: http://ryanestradadotcom.tumblr.com/post/20461267965/learn-t...
Source: my korean teacher back when I did a year of study in korea. So I might be fuzzy on some details.