I dont know the answer to your main question, but I would be inclined to believe that if there is a God he/she would be against any institution that kills his/her creations.
My personal view is that you wont be happy as a JW. JW's are very similar to the military in that they control every aspect of your life. As a JW you have more perceived freedom because no can send you to Leavenworth to "make little rocks out of big rocks" but they exert just as much control by using psychological tools of coercion as others have pointed out. Challenging the system is not accepted in either one. Basically they both suck, I have been in the Air force for 3 years and I was a JW until
I was 17.