So definitely no church has "everything" right. But that of course is not the same thing as saying "no church has anything right" - although the LDS and Christian Science do have a pretty good stab at it. (Guin: that's not a joke).
For example: "I believe that Jesus Christ is the only son of the only Living God" might seem to be quite a "Christian" thing. But the Bible says that even demons can say the same, so that's not a sufficient mark of a true christology.
Evidently there is a need to define what a person (or church) means by the words "Jesus Christ", "son" and "God" before assuming any similarity in faith. The more people believe "things" about Jesus which are from a source other than the Bible, then greater is the likelihood of non-christian doctrine - A Course In Miracles for one and "The Shack" for another.
Jn 14:25-26 “These things I have spoken to you, while I am still with you. But the Counselor, the Holy Spirit, whom the Father will send in my name, he will teach you all things, and bring to your remembrance all that I have said to you"
John 15: 23-27 "He who hates me hates my Father also. If I had not done among them the works which no one else did, they would not have sin; but now they have seen and hated both me and my Father. It is to fulfil the word that is written in their law, ‘They hated me without a cause.’ But when the Counselor comes, whom I shall send to you from the Father, even the Spirit of truth, who proceeds from the Father, he will bear witness to me; and you also are witnesses, because you have been with me from the beginning"