As a lurker here for many years it seems clear to me that very many ex-JWs have become atheistic, some even agressively so. Possibly they were so wounded by their Watchtower experience that in fully rejecting it they also fully reject the Bible and the concept of God. I've also vacillated in my opinions as I've studied and evaluated non-Watctower information. For example, it's been very difficult for me to resolve the apparent conflict of a loving, merciful God with the practice of animal sacrifice; the relationship of Jehovah vs. Jesus vs. Holy Spirit; "miracles"; heaven vs. eartly paradise; evil spirits, etc., etc,. Yet I can't chuck it all away, deny God, and go with chance evolution as the final solution.
The resolution that's working for me, right now at least, is that that problem isn't with God, it's with mankind's attempts to explain it all and provide all the answers. So what I've rejected is the concept of the Bible being the full and literal explanation of God and mankind. The Bible was written by men and even if some or all of them were "inspired", that doesn't mean they were infallible. They recorded and explained as best they could for their understanding and the science of the times. Much scripture that various religions take as dogma may be fables provided by the ancients to try to rudimentally explain our existence and provide some ground rules for civilization. But mankind's shoddy theological cobblings don't preclude a Creator God. So, although we may feel that we must reject much of the Watchtower, it doesn't follow that we should reject God - or even reject "Jehovah". Nor do we need to reject Christ or "christian" principals.