The hardest part is getting them to take an honest look. Different points may be of more importance than others.
points of interest:
(1) According to wts -Jesus is the mediator only between God and the 144,000, not All Men
(2)WTS was a United Nations Nongovernment Organization member for 10 years UNTIL EXPOSED on the internet
(3) JWs can't donate blood to save a life, but Jesus shed his blood for us
(4) WTS has kept donated stock in a cigarette manufacturer and a military contractor
(5) WTS has tried to regulate sexual activities of married couples without scriptural basis
(6) WTS discourages higher education
(7) They state WTS is God's Organization on earth, yet have had numerous errors in it's history