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