Between Achebe And Soyinka?

One of America’s most prestigious honors – The Medal of Honor for literature from the National Arts Club is to be presented to Nigerian novelist Professor Chinua Achebe on November, 16, 2007, in New York City.


The Medal of Honor of The National Arts Club honors the achievement of the author chosen annually by the Literary Committee Members. The Club's membership has included three presidents, and some of the most important artists and arts patrons in America . Presidents Theodore Roosevelt, Woodrow Wilson and Dwight D. Eisenhower were all members of the National Arts Club.

Please i want to know If Wole Soyinka's Nobel Prize supercedes this honor.
Both are luminaries, but one supercedes the other, who do you think between Prof Wole Soyinka and Prof Chinua Achebe?