It's really not apples to apples and within Hertz there are codes that constitute other elite levels as well. For instance with the Amex Centurion card, you get guaranteed TRIPLE upgrades (based on availability) at Hertz in the US. I had to show the printed letter from the President of Hertz to get the Hertz staff at LAX to believe this when it first started.
I rarely use Hertz, but the last time I did was pretty funny. The lady at the Gold booth in SJC pulled up my reservation and said "Wow. It says here I have to give you whatever car you want, or you can have me fired."
