There is an immense difference between a worldview that is not able to answer every question to complete satisfaction and one whose answers are consistently contradictory. There is an even greater difference between answers that contain paradoxes and those that are systemically irreconcilable.
Once again, the Christian faith stands out as unique in this test, both as a system of thought and in the answers it gives. Christianity does not promise that you will have every question fully answered to your satisfaction before you die, but the answers it gives are consistently consistent. There may be paradoxes within Christian teaching and belief, but they are not irreconcilable. To those who feel that Christianity has failed them because of prayers that went unanswered, it is important to realize what I am saying here.
All great questions of life have only one answer. Conflicting and contradictory answers cannot be valid. Jesus’ unique claim for himself while answering Thomas (Jn. 14:6) is a statement which is philosophically and logically reasonable. Even those who deny unique and exclusive approaches to truth would insist that their own approach is unique and exclusive! Otherwise, they would have nothing to say! Truth, by definition, is therefore exclusive and narrow. It has to exclude errors in order to qualify to be truth.