Direct:
* Able to get one of the new resorts
* Biggest difference is that you can use your points for non
DVC properties (like Disney Cruises, etc...). Search the boards for details on what a resale property can't reserve, but consensus on these boards are that these aren't a good value for the use of your points anyhow.
* You could get an SSR contract direct from Disney if that's what you're interested in. I believe that this would be cheaper than AKV or VGF.
* You can determine the size of contract, home resort, and contract month.
Resale:
* Cheaper (do the math - this is the reason that most people select resale over direct).
* Resales exist for all resorts (minimal for new resorts though)
* Limited to contract size/location/month for contracts listed
This is a very basic question that you should understand regardless of which way you go. I would start by requesting the DVC information packet online to get the official information that they send out even if you plan to go resale. Read up in this forum for additional information. Educate yourself first before you make a move. Good luck.