I would like to hear your opinions on who was sthe greatest cartoonist of the 20th century, keep in mind that by cartoonist I mean both illustrated fiction AND animation.
My pick is Dr. Tezuka Osamu.
Why? Why not?!
For those of you who are new to anime and manga, Osamu-san created many of the cliches found in anime today.
Big eyes small mouth?
He did it first.
Giant Robots?
He did it first.
Fantasy stories in Feudal Japan?
He did it first.
His most famous creations include the thriller manga Dororo (the inspiration for the recent PS2 game Blood Will Tell), a medical drama called Black Jack, and the manga that would inspire one of my fav movies of all time, JUngle emperor Leo.....
.......oh yeah.....and he created a little character called Astro Boy....not sure if you've heard of him

Also, there was always a deep social message behind his work, Astro boy is a story about war, opppression, and technology, Jungle Emperor Leo is about the relationship between man and nature.
Of course, this is just my opinion. What's yours?