So
@Jaxxi if I were you, I would approach this question the other way; tracing back the history of the early Church, which modern churches today would Jesus be most horrified by? Recall in Revelations the pastoral concern he expressed for several local churches, some of which had serious problems. Some of the churches our Lord addressed in Revelations, and the Apostle Paul wrote to in his epistles, still exist; others do not. For example, the local church of Corinth despite all its problems miraculously managed to survive; the church at Ephesus was exterminated by the Turks in the genocide of 1915, although Christian pilgrims still visit the town.
The early church did not have denominations; there was just one unified church, which is mentioned in the Creed as the “One Holy Catholic and Apostolic Church.” Note in this context Catholic does not mean Roman Catholic but rather “according to the whole”, meaning the entire church preaching the entire doctrine; and despite the Roman Catholic Church attempting to monopolize the word Catholic, that never happened, and Eastern Orthodox, Lutheran, Anglican, Oriental Orthodox, Old Catholic, Moravian and Assyrian Christians are among those who self-identify as Catholic. The denominations resulted from schisms which started in the fifth century, when Pope Leo I meddled in the affairs of the Eastern church; then in the eleventh century Pope Leo IX excommunicated the Patriarch of Constantinople for refusing to agree with the doctrine of Papal Supremacy, and then in the 15th century, the Roman Catholic Church ignored the complaints of Czech Orthodox Christians who had been forcibly converted to Roman Catholicism, and in the 16th century Pope Leo X ignored the complaints of Martin Luther. However, not all the schisms were caused by the Roman Catholic Church, and in several cases I believe we can say the Roman church acted correctly, for example, the initial event that led to the creation of the Church of England, that being Henry VIII’s desire for divorce and remarriage, was not shall we say morally impressive.
But God moved in mysterious ways. The Church of England managed to accomplish a number of things that the Roman Church has unsuccessfully tried to do repeatedly, for example, get people to attend Morning and Evening Prayer in addition to the Holy Communion service. The Roman Catholic Church for its part did admirably reform itself, and in my opinion is one of the better churches today, particularly when one considers its massive charitable operations which do save many lives in some of the poorest countries, and which unlike secular charities such as Goodwill and the Red Cross, are largely run by unpaid celibate monks and nuns (whereas Goodwill and the International Red Cross have had several controversies about how massively overpaid their executives are; in 2013, the lowest paid Goodwill employee in the US, a disabled woman, made $1.13/hr, which I thought was illegal, while the total cost for executive salaries at Goodwill was $53 million).
The Episcopal Church USA also has some very good charitable operations, but I think our Lord is angry with some of their leaders, specifically those who did waste $45 million on legal fees suing conservative parishes and dioceses which wanted to leave because of the unbiblical teaching of the Episcopal Church on human sexuality (the Episcopal Church deviates from what our Lord and the Apostle Paul taught about homosexuality and gay marriage), in order to keep the real estate. And then there was a major scandal in Los Angeles because Bishop Bruno, who has resigned in shame, had apparently done some unethical side deals with real estate developers that would have personally benefitted him when the former conservative parishes, which inevitably closed after the traditional Christians were locked out, were sold; this specifically involved a parish the church was trying to sell that occupied prime waterfront real estate. But, to the credit of the Episcopal Church, they are starting to return towards Christ; people have been leaving them for traditionalist Anglican churches for decades, and I have a feeling things will get better under their new Presiding Bishop.
Now, as
@GreekOrthodox mentioned, what is now the Southern Baptist Convention was originally formed over slavery, but they have repented of that, and while I disagree with them on doctrine, specifically, I believe infants should be baptized, the modern day SBC, along with the Roman Catholics, the Eastern and Oriental Orthodox, the traditional Lutheran churches (but not the ELCA), and some other denominations, are a strong witness against the evils of abortion, euthanasia, the promotion of homosexuality and transsexuality to children, and other grievous offenses. Meanwhile, the denomination I resigned from for reasons of my conscience, the United Church of Christ, actively promotes these things!
The other thing to remember is that in recent decades, there has been considerable ecumenical rapprochement. The Roman Catholic Church and the Eastern Orthodox have had very productive dialogues, recovering from the schism in the eleventh century caused by Pope Leo IX, and also the Roman Catholic Church has had even more productive dialogues with the Oriental Orthodox and the Church of the East, which became separated from it and the Eastern Orthodox in the fifth century, and separately the Oriental Orthodox and Eastern Orthodox in Egypt and Syria have become so close, they are basically, from the perspective of the laity, an extended family.
