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