I actually tossed my shirt in the wash inside out and used the gentle cycle. I figured that if the gentle cycle is good enough for silk and satin then my shirt should survive. My shirt also smelt like it was sitting in a warehouse for months so I wanted to give it a good wash. I wouldn't do that with one of the new hoodies though because the fabric is heavier, the crystals are grouped closer together and the hoodies cost around $700+. On my tag it said "shirts with crystals must be dry cleaned or washed by hand only, then layed flat to dry." If your willing to invest $700+ on a hoodie I would just spend an extra $20 or so to have it professionally dry cleaned.
I just have the hoodies that were released in December.
Oh, I don't really have a favorite collection, I just want all the Angel Wing shirts in every color and from every collection, especially the Lust & Desire Collection.