Saved ONLY by faith in Jesus?

The most reasonable answer to this IMHO, is the Catholic one. All who are saved are saved through Christ and Christ alone. However, we all depend on his mercy and cannot know in advance is judgments. Members of non-Christian religions though they may not recognise him in this life as the Savior, may still be saved through Christ's free exercise of his mercy. We cannot bind God or box him in. Who are we to say what he can and cannot do with his love. The Catholic Church only names a few who are known to be saved (saints--about 1000 in history). The Church never attempts to name a person in hell no matter what they did in their life. There are means to know of people in heaven--miracles, etc. but none for knowing who is in hell. Not even their religion alone can bind God's mercy.