PVC TPO

I am try to compare and select a PVC for use on existing (condos) flat roof (EPDM) in Florida.

I would be interested in hearing opinions of particular PVC brands and their benefits fro Florida weather.

Would TPO also be a good choice? I understand it's new (15 yrs) all comments welcome

I am also trying to find any previous discussion on PVC and TPO.

Thanks beforehand

JoeW