I am my own god ... but the following people I consider exemplary, and worthy of a brief mention:
Charles Darwin;
Karl Marx;
Martin Luther King;
Albert Einstein;
Isaac Newton;
Leonardo Da Vinci;
Thomas Edison;
Friedrich Nietzsche;
Sigmund Freud;
Immanuel Kant;
Voltaire;
Socrates, Plato & Aristotle;
Nicolaus Copernicus;
Rene Descartes;
Nikola Tesla;
Carl Jung;
Hippocrates;
Confucius;
Nelson Mandela;
Louis Pasteur;
Bill Gates;
Steve Jobs;
Gutenberg;
Shakespeare;
Columbus;
Galileo;
Pasteur;
Locke;
Michaelangelo;
James Watt;
Dante;
Wright Brothers;
William Bell;
Marie Curie;
Marco Polo;
Picasso;
Simon Bolivar;
Enrico Fermi;
Thomas Hobbes;
Niels Bohr;
Oppenheimer;
Marconi;
Mozart;
Hegel;
Spinoza;
Adler;
Gorbachev;
M Gandi;
Lincoln, Roosevelt & Washington;
Tolstoy;
14th Dali Lama;
Mother Theresa;
John Lenin;
Can't think or any more off the top of my head ... or on lists that I agree with on the interwibble.