Here is a post I made on this topic not too long ago. I believe it applies here as well.
You bring up a great question. After coming to this board, I've noticed a lot of people asking that question, really wanting to know one way or another about the existence of God. I've seen some who are hopeful for his existence, and I've seen some down right deny his existence. I think it is another commonality of the people of this board to go through a phase of thinking this through. I have to say, it kind of surprised me to see this because I naively thought that anyone who had come from being a JW realized the "need" for God in their life, and upon leaving, would automatically be seeking him and would choose Christianity. Boy! Was I wrong! But through reading the posts in here, I've come to believe a few things that may or not be true, but fit within my own world view. Here's my two cents:
I personally believe in the God of the Christian Bible and in Satan of the Christian Bible.
I believe that God allows Satan to rule this earth until the return of his son, Jesus Christ.
I believe God never promised us our lives would be rosy or easy, only that he would be there to help ease our suffering on earth while Satan rules it. Even the Apostle Paul speaks of and glorifies suffering.
I know that the WTBTS has it's roots in the occult and relies heavily on "theocratic warfare" when it is their only way "out" of sticky situations. The definition of "theocratic warfare" is plain and simple: it means "lying through one's teeth in order to perpetuate other lies." And who does the Bible say is the father of lies? Satan. So, we have occult and we have lies. Therefore, I believe the WTBTS is not lead by God (Jehovah), but by Satan.
I know that Satan was the angel of light, so therefore, he can appear as "light" to those who are really in darkness. So, if he can appear as "light", then he can appear as "Jehovah" to those who have been "tricked" into believing he is Jehovah.
I believe that Witnesses were unwittingly mislead by Satan into believing he was Jehovah, and when Witnesses were hurt in "his" name, it drove an even deeper wedge between them and the real God because they became so angry with Jehovah for not being there for them when the chips were down, that many abandoned belief in any God altogether. I believe this is Satan's ultimate triumph because it's a win-win situation for him. First, he "tricks" people into unknowingly believing in his organization, (or sub-organization) and then, when they leave and don't want anything to do with the real God, he still wins because if they are not a part of the real God's organization, they are STILL part of Satan's larger organization!
I believe this makes the real God in Heaven, and our Lord Jesus Christ very sad indeed because he wants to have a personal relationship with each and every one of us.
I know that my life has changed TREMENDOUSLY since I stopped fighting God and accepted him into my life. I don't have so many quesstions, and I don't feel like there are few satisfying answers even though I am going through the hardest time in my whole life right now, and that ain't no joke. But I don't feel defeated and I don't feel depressed like I was before I invited him into my life.
Just so you know, the last thing I am trying to do is "cram" my beliefs down anyone's throat, nor am I saying that my beliefs regarding Witnesses is the absolute answer. I am simply answering your post from my own experience, and hope that I've been able to help you in some small way, whether you share my beliefs or not.
Good luck in your search.
imallgrowedup