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