I say
1- the mind control [being told what to do, how to do it and when to do it and the endless list of all you cannot do]
2- discouragement of individuality which causes depression and a crushing of the spirit
3- the pressure to be so different from the world which causes you to feel like a social outcast and tends to make you socially retarded in regular life (mostly for those of us born and raised in it) ie. not taking part in holidays, birthday parties any and all cultural practices (4th July, Thanksgiving, Mothers Day etc).
4 - the pressure to always have something to do for the borg (meetings, FS, study, assemblies). Being so busy with hardly no time to rest, spend time with family, relax or enjoy life
5- No participation with charities to help people in the world right now. They look for every problem to be solved by "the new system" and have little (NO) concern for people's needs right now. They dont provide scholarship money to young people, provide no retirement plans for those that spend many years slaving for their cause. And, they disregard you at the drop of a hat (even after many years of service if you make a mistake and "sin"), by DFing your butt.
6- Blood policy - Stupid! Enough said!
7 - not acknowleding when they're wrong. Doctrines are changed overnight and the R&F are supposed to just accept it as "new light" without questioning (i.e. generation change, voting, blood policy-allowing fractions now)
8 - Not worshiping God - There meetings are just like (as boring) as corporate meetings. You sit and try to stay awake. Since I've left the jws I've seen people actually worshiping God in church. They are emotional , pour out their hearts, give experiences of how God has helped them, they hug you without even knowing your name. They dance and sing loudly and joyfully. IMO that was a grander demonstration of faith and worship than I've ever seen at any KH ever!
I could go on and on............ so many things Wrong with that religion!!!