I am new to diamond status. Have long been a hyatt globalist and always got upgraded to best available room without a charge. Hhonors website suggests Hilton has a similar policy. Stayed at new Hilton in downtown Columbus, Oh and was told would only be upgraded one room category despite being better rooms available. Was told if wanted corner room on high floor would cost $15. Is this standard with Hilton. If so it is a big difference compared with how Hyatt treats top elites.