A great, unheralded center. The '65 SF Warriors had both Nate Thurmond as well as Wilt Chamberlain. The first time I saw Hakeem Olajuwon in the NCCA in '83 I thought he played the game like Nate Thurmond did.
I never really thought about the Hakeem Olajuwon and Nate Thurmond comparison, but you're totally right, the rebounding and defensive skills and intensity are very similar.