After reading this information I set up a Virgin account and asked Avis to credit my miles there. 1000 per rental seemed too good to pass up. Alas I got but 500. They did post though and quickly. I personally have never had issues with Avis miles posting. I have sent them various places including: UAL, NW and Starwood.

If 500 is the standard for Virgin I think I will switch to Lufthansa cince I am UAL Premier. Hopefully I can snare some of those Lufthansa bonuses mentioned above. Does anybody know how often they extend the bonuses?