PriorityClub is present in all sponsored accounts just like Hilton, so I'd say you'll have all the partners.
There is a problem with PC itself however, the only time I've redeemed to them (11 weeks ago), I never received the points. The CS are still investigating.

When you cancel the account, the email is still associated and you cannot use it again. You should change the email to something like [email protected] BEFORE cancelling the account if you want to use the same email address.