General Discussion (Gen 3)
So, the Toyota recommended tire for the 2011 AWD Siennas is:
http://www.tirerack.com/tires/tires.jsp?tireMake=Bridgestone&tireModel=Blizzak+LM-60+RFT&partnum=355HR8LM60RFT
It looks like last year's model, but between my local dealer's pricing on tires and programming, etc. I was really close...