Muslims only have 2 choices given to them by their own history.

"These early synoptic Qur’ans were not preserved because the differences between them led to arguments within the early Muslim community.

"The Syrians," we are told, "contended with the `Iraqis, the former following the reading of Ubayy ibn Ka`b, the latter that of `Abd Allah ibn Mas'ud, each accusing the other of unbelief." (Labib as-Said, The Recited Koran: A History of the First Recorded Version, tr. B. Weis, et al., Princeton, New Jersey: The Darwin Press, 1975, p. 23)

The third caliph, Uthman, solved this political problem by choosing one of these collections to be the standard version for the entire Muslim community. He had the other collections destroyed.

Narrated Anas bin Malik: Hudhaifa bin Al-Yaman came to Uthman at the time when the people (Muslims) of Syria and the people of Iraq were waging war to conquer Armenia and Azarbaijan. Hudhaifa was afraid of their (the Muslims of Syria and Iraq) differences in the recitation of the Qur'an, so he said to 'Uthman, "O chief of the Believers! Save this nation before they differ about the Book (Quran) as Jews and the Christians did before." So 'Uthman sent a message to Hafsa saying, "Send us the manuscripts of the Qur'an so that we may compile the Qur'anic materials in perfect copies and return the manuscripts to you." Hafsa sent it to 'Uthman. 'Uthman then ordered Zaid bin Thabit, 'Abdullah bin Az-Zubair, Said bin Al-As and 'AbdurRahman bin Harith bin Hisham to rewrite the manuscripts in perfect copies. 'Uthman said to the three Quraishi men, "In case you disagree with Zaid bin Thabit on any point in the Qur'an, then write it in the dialect of Quraish, the Qur'an was revealed in their tongue." They did so, and when they had written many copies, 'Uthman returned the original manuscripts to Hafsa. 'Uthman sent to every Muslim province one copy of what they had copied, and ordered that all the other Qur'anic materials, whether written in fragmentary manuscripts or whole copies, be burnt. ... (Sahih al-Bukhari: vol. 6, bk. 61, no. 510) "

 The late great Egyptian Professor Dr. Taha Hussein summarizes the atrocity of Uthman’s actions: The Prophet
Muhammad said: “The Koran was revealed in seven dialects, all of them are right and perfect.” When Uthman banned whichever he banned from the Koran, and burned whichever he burned, he banned passages Allah has revealed and burned parts of the Koran which were given to the Muslims by the Messenger of Allah. He appointed a small group of Sahaba (close friends of Muhammad) to rewrite the Koran and left out those who heard the Prophet and memorized what he said. This is why Ibn Massoud was angry, because he was one of the best men who memorized the Koran. He said that he took from the mouth of the Prophet seventy suras of the Koran while Zaid Ibn Sabit was yet a young lad. When Ibn Massoud objected to the burning of the other codices of the Koran, Uthman took him out of the mosque with violence, and struck him to the ground, and broke one of his ribs. (Hussein, A-Fitnato Al-Kobra [The Great Sedition], pp. 160-161, 181-182).
Muslims attack the Bible on the grounds that it sometimes has conflicting wording from different manuscripts. Yet this is exactly the case with the text of the quran. There are many conflicting readings on the text of the quran as Arthur Jeffery has demonstrated in his book, Material for the History of the Text of the Quran(New York, Russell F. Moore, 1952). At one point Jeffery gives 90 pages of variant readings on the text. For example, in Sura 2 there are over 140 conflicting and variant readings on the text of the quran.
All Western and Muslim scholars admit the presence of variant readings in the text of the quran(Dashti, 23 Years, p. 28; Mandudi, Meaning of the Quran, pp. 17-18; McClintock and Strong, Cyclopedia, V152). Guillaume points out that the quran at first "had a large number of variants, not always trifling in significance"(Islam, p. 189). "It is interesting to note that in scholarly Muslim journals, there is beginning to be a grudging acknowledgment of the fact that there are variant and conflicting readings on the text of the Quran"(One example would be Saleh al-Wahaihu, "A Study of Seven Quranic Variants," International Journal of Islamic and Arabic Studies, Vol. V
(1989), #2, pp. 1-57). According to Professor Guillaume in his book, Islam, (pp. 191ff.), some of the original verses of the quran were lost. For example, one Sura originally had 200 verses in the days of Ayesha. But by the time Uthman standardized the text of the quran, it had only 73 verses! A total of 127 verses had been lost, and
they have never been recovered.

The Shiite Muslims claim that Uthman left out 25 percent of the original verses in the Quran for political reasons (McClintock and Strong, Cyclopedia, V:152). That there are verses which got left out of Uthman's version of the Quran is universally recognized (Shorter Encyclopedia off Islam, pp. 278-282; Guillaume, Islam, p. 191; Wherry, A Comprehensive Commentary on the Quran, pp. 110-111).
John Burton's book, The Collection of the Quran, which was published by Cambridge University, documents how such
verses were lost (London University Press, 1977, pp. 117ff. See also Arthur Jeffery, Islam: Muhammad and His Religion, New York; Liberal Arts Press, 1958, pp. 66-68). Burton states concerning the Muslim claim that the Quran is perfect: "The Muslin accounts of the history of the Quran texts are a mass of confusion, contradiction and
inconsistencies"(Burton, Collection, p. 231).

So, either the Quran was seriously flawed and full of contradictions to begin with, or Uthman changed it. What is your choice?

How do Muslims today feel about burning Qurans?  How should Uthman be treated for burning Qurans?  Should Uthman's writings be accepted in light of what he did to the Qurans?