FYI, Starwood Platinums get comped Preferred Select. Just call the platinum line and ask about it. They'll give you a code and a number to call at Avis. I had to ask the Avis CSR to talk to her supervisor about it, though, because she was clueless. Supervisor transferred me to another department that took about 15 seconds to do it.
Now, we'll see if it gets me anything. Not expecting much given the comments here.