NBA Primary LogoNBA Alternate LogoNBA Wordmark LogoNBA Team History Who is the greatest center in the NBA of All-time? Robert Parish Wilt Chamberlain Elvin Hayes Hakeem Olajuwon George Mikan Patrick Ewing Walt Bellamy Dwight Howard Willis Reed Moses Malone Bill Russell Shaquille O’Neal Wes Unseld Kareem Abdul-Jabbar Dikembe Mutombo Bob McAdoo David Robinson Nate Thurmond Bill Walton Dave Cowens Poll …