Welcome UNTRUTH. Now that you've taken the huge step to join others "in the same boat", just take your time and plan your strategy. Personally, I wouldn't focus on the org's personalities or business practices when speaking with a J.W. - especially your wife. As you've already shown, she's got her "conversation stoppers" ready, stuff such as "wait on Jehovah", "they're imperfect men", "there's nowhere else we can go."
Concentrate on the doctrinal lies by asking her questions about a certain topic. Let her reason on the gulf between what the org says and what the Bible says. Only then can she begin to see that the WTBTS is not God's organization - that it's no better than any other cult/sect which claims to be "the true religion."
You have a P.M.