Having looked into credit card rewards extensively in prep for my upcoming direct purchase, Chase codes DVC purchases as travel (based on prior reports). The Chase Sapphire Reserve gives you 3x points on travel, which you can then transfer to a multitude of airlines/hotels, or book via the Chase portal for 1.5x (so effectively 4.5x).
AMEX does not code as travel based on recent reports.
Other people look at the Disney credit card because it offers 0% interest for six months, but it only offers 2% cash back. Personally, I'm planning on either of the following for my upcoming direct Riv or Poly purchase:
a) using my Chase Sapphire Reserve for the 3x points (and splitting my payments over three months, so my money can sit in my savings account for a bit longer)
b) opening a couple new credit cards for the sign up bonuses / splitting payments as well
For dues, many people buy discounted Disney gift cards at Target - the REDcard gives 5% off - or if you have a Chase Ink Cash, they give 5x on office supply stores. That's technically a business card, though.
My resale contract escrow payment did not code as travel. The escrow company allowed $7500 to be paid on a cc. Sadly I only received 1.5x there.
If you decide to post a full thread, I'll pull this over there.