Only Jehovah God can judge each individual's fate.
On the other hand, many who aren't Jehovah's Witnesses believe in a judgement which includes being tormented in hell forever.
If someone were to be judged and killed during Armageddon, at least Jehovah's Witnesses believe in the Bible which tells us that when a person dies, he will not be tormented but will simply be "conscious of nothing at all". (Eccl. 9:5) Isn't that a more loving view of God's judgement than other's view of Jehovah's Witnesses fate?
For more, click on the following articles:
Judgment Day—What Is It?
A Closer Look at Some Myths About Death