:bism: (In the Name of God, the Most Beneficent, the Most Merciful)
If humanity had only two choices, would it be a better world (for men and women) if we followed the example of
a) Prophet Mohammed
b) Jesus Christ?

Thank you for your question. And welcome to the board, sister in humanity. Hope you're doing well.
Prophet Jesus
(peace be upon him) is an extremely revered and loved prophet and personality in Islam. However, Christians perhaps do not realize that Jesus
(peace be upon him) was not a "Christian" but literally an Orthodox Jewish Rabbi who believed and supported Old Testament laws and only was sent by God to the Jews to correct the intentions and hearts as to its application and have them know that mercy is a blessed path. Jews, for example, today are still waiting for the coming of two prophets as their scripture dictates to await but accepted neither Prophet Jesus
(peace be upon him) nor Prophet Muhammad
(peace and blessings be upon him) when the time cameas the divinely chosen arbiters of God's word. Prophet Muhammad
(peace be upon him) taught exactly the same things that Prophet Jesus
(peace be upon him) taught with the intention that people understand the blessed mercy of following the path of submission to God. So, to answer your question, in following Prophet Muhammad
(peace and blessings be upon him), Muslims believe already they are following the path of Jesus, Moses, Abraham, Noah
(peace be upon them all).
The evidence for this is in the Qur'an (3:84):
“Say, we believe in God and that which was revealed unto us, and that which was revealed unto Abraham and Ishmael and Isaac and Jacob, and the tribes and that which was entrusted unto Moses and Jesus and the Prophets from their Lord We make no distinction between any of them and unto Him we have submitted.
”
Muslims believe that the best way to worship is to follow the path of Prophet Muhammad
(peace and blessings be upon him) as that is the path of salvation now and the path that merges all previous prophetic paths into the Straight Way. The evidence for this is in the Qur'an 42:52: "
And thus, too, [O Muhammad,] have We revealed unto thee a life-giving message, [coming] at Our behest. [Ere this message came unto thee,] thou didst not know what revelation is, nor what faith [implies]: but [now] We have caused this [message] to be a light, whereby We guide whom We will of Our servants: and, verily, [on the strength thereof] thou, too, shalt guide [men] onto the Straight Way –"
To answer your question as someone who was a former atheist and is now a Muslim, the best path for humanity to follow at this time is the path of Prophet Muhammad
(peace and blessings be upon him) striving to keep one's heart clean and serving humanity in the spirit of serving God. By the same token though, each human being, Muslim or non-Muslim, should recognize also some Muslims are on a dark path and are advocating evil and that that is not the path of Prophet Muhammad
(peace and blessings be upon him) or Jesus or Moses or Abraham or Isaac or Jacob
(peace be upon them all). So, all human beings should keep good company and realize that good company enables reminder of God and realizing his/her own imperfections to improve his/her character, which is one of the purposes of struggle against the self, and that other struggles whether physical or mental in the world are a distraction from this divinely ordained spiritual struggle for Prophet Muhammad :saws:
(peace and blessings be upon him) said,
“I have been sent to perfect noble character” (Sunan Al-Bayhaqee: 21301). Prophet Muhammad
(peace and blessings be upon him) also said, “I have only been sent to perfect good moral character” [Musnad Ahmad (8595)].
Sincere Regards & Best Wishes, 