Business Awaits Its Regulator-in-Chief
US business is awaiting results of presidential election to find out who will be nation's chief regulator; Democratic and Republican campaign advisers say that on wide range of issues a Bush administration would be far friendlier to business than a Gore administration; some advisers say differences between Gore and Bush in regulating businesses are as much product of their careers as anything else; Greg Simon, telecommunications adviser to Gore, and Lawrence B Lindsey, economic advisor to Bush, comment; chart (M)