Hi everyone,
Thank you all for your posts!
I have been closely following all the comments and suggestions from everyone that has participated so far. I really appreciate the thoughtfulness that you have given to this subject -- it is very evident from everyone's posts.
Although we all share the JW cult experience and everything that goes with being in this religion and leaving it, we still have had fairly different paths and experiences upon leaving. As a result, the things that are most important to each of us differs between us.
Perhaps it's not too surprising that there is no one topic that is the clear front-runner. However, there are three about which there is a general consensus:

As many of you have commented, these are very related. Indeed, it's really impossible to talk about one without touching on the others -- at least insofar as they relate to each other.
For example, one obvious reason many of us felt isolated and possibly lonely when we first left the cult is because we were cut-off and shunned by our family and former friends that remained in the group. We no longer had that community. Even if we no longer believed the Governing Body is guided by God, we still all need and want (as does everyone) to feel that we belong somewhere and are cared about by others. It's a devastating loss and not one that is easily replaced.
Couple that with the JW belief that everyone that is not a member is part of "Satan's system of things," and it's more than likely that most of us had few, if any, friends outside of the religion.
These and other beliefs have a lot to do with creating those feelings of isolation and loneliness. They all must be addressed in order to overcome them, and that takes a lot of work.
I intend to come back later this coming week and respond specifically to some of the excellent, very thoughtful comments that you all have made.
In the meantime, know that I greatly appreciate everyone's contributions. It's all been -- and continues to be -- very helpful to me.
jp