I presume you're asking about buying into DVC?
If so, there are numerous variables that can affect that decision.
What do you mean "long term outlook"? Reasons for keeping a contract for X-years? Potential for selling and making some profit?
In brief, "the best contract" is the one for the resort where you'll most want to stay and generally will stay annually or more often.
Beyond that, we need more information regarding your concerns to give any advice to speak of.