Yes, greater for security but still depends upon reliability of certificate authorities and ISPs. ISPs have the ability to issue the client a bogus certificate while they hold the real one in order to decrypt traffic. Why won't browsers allow the certificate's public key to be readable by javascript so that the remote server can verify the client has the correct certificate? This wouldn't be foolproof but it would significantly beef up security.
Similar to how tor hidden services get resolved, distributed hash tables seem like the way to go. Take the ISPs and Cert Authorities out of the equation.