Well, it sounds like you've done a good job on "planting some seeds" that could start their awakening. Remember, you must be extremely careful not to cross the line from "planting seeds" to "outting yourself" as an apostate rebel.
Though it's not impossible, most have discovered that disputing JW doctrine is not effective in awakening a JW. That's because the majority of JWs DO NOT KNOW the JW doctrines. The vast majority cannot explain them -- esp things like 607 + 2520 days/years = 1914; or how Jesus decided to choose the F&DS in 1919; and especially this bullshit about Overlapping Generations.
RE: The Catholic Church is Worse -- A response might have been, "But how much (corruption or child abuse cover ups) is OK? Would you drink a glass of water that is HALF poison? How about if the glass has only a LITTLE poison? How much poison is OK? (A little leaven ferments the whole loaf!)
Or the approach: But why would Joe Hoover and the Holy Spirit allow these abusive elders to remain as shepherds of the Congregation. Were these men able to lie and fool Joe Hoover? Were they able to "pull a quick one" on the Holy Spirit? How can we explain these travesties? Didn't Jesus say: "No good tree produces rotten fruit?" How is it to be explained?
Always better to ask questions than try to present controversial facts on issues. Better yet if your doubts are the result of questions from someone at work or school. "So-and-so said [this] and I don't know how to disprove them."
Be careful about revealing your true thinking. That will amount to no good for you.
Start now to build a network of "worldly" friends!!!