
Co-Creator of the 
Marvel Comics
 universe...although "Catalyst" might be a better term to describe him.
Together with an astounding group of artists (some, like Jack Kirby

,
 already legends in the field), he produced a memorable lineup of 
characters and stories which, to this day, form the backbone both of the
 comics line and various film and tv spinoffs.
Even the characters Lee 
didn't co-create (like 
Captain America
 and the 
Silver Surfer
) were guided and shaped by Lee in his role as Editor into the versions we know and love today.
And credit where credit is due...Lee 
couldn't have done it without Kirby, Steve Ditko

, Don Heck, Gene Colan, and the rest; while they, who had all done superb work 
without him, did their 
best work 
with him!
(C'mon, what post-Stan Lee 
Marvel characters have had any 
real success, outside of the 1975 revival of the 
X-Men
, itself based on core characters created by Lee and Kirby?)
So, EXCELSIOR! to you, Stan the Man!