First off, welcome to the DIS boards!
There really aren't any "best" resorts. Purely a matter of taste, vacation styles and personal preferences.
We wanted a resort we felt like we fit well with, that felt like "home" to us. For us, that means VWL and BWV.
Others couldn't imagine not having the ambience of OKW, SSR or BCV.
Have you visited any of the resorts? Does the theming, location or feel of any of them "grab you"?
None are better than others...they just are different which makes
DVC even more attractive.
If you think you will want to stay at a particular resort the most, I'd advise to purchase there to secure your home resort booking advantage.
If none of them appeal to you more than another, I'd buy at OKW for low points and dues or SSR for low points, dues and an extra 12 years of use.
The only way to really advise you is to know what you are looking for in a home resort.
Location (proximity to a specific park or area)??
Longest use life...SSR
Low point schedules (such as BWV Standard View, SSR and OKW)?
Biggest rooms? OKW wins that one hands down.
Amenities such as the great pool at BCV?
Each resort has its own charm and appeal. But because they are different, they tend to appeal differently to different people.
Any particular area or resort at WDW that makes you feel "at home"?
If you're not sure, I'd advise visiting each one on a future trip before buying. You might find that certain resorts don't appeal to you at all, and it's hard to know that before experiencing it.