Which sin is greater in the eyes if allah homosexuality or murder
Islam doesn't give a "sin ranking", so it might not be straightforward to say one is worse than the other. To get a better mental picture, it's possible to compare the evidence for murder (major sin #2) with the evidence for sodomy (major sin #11) in al-Dhahabi's Major Sins (PDF).
It's natural to believe that murder is a worse sin than sodomy. There's some Islamic reasons too, such as:
The Qur'an strongly emphasizes the effect of murder:
... whoever kills a soul unless for a soul or for corruption [done] in the land - it is as if he had slain mankind entirely ...
But whoever kills a believer intentionally - his recompense is Hell, wherein he will abide eternally, and Allah has become angry with him and has cursed him and has prepared for him a great punishment.
While the Qur'an also emphasizes the sin of the people of Prophet Lut, it's not to the same extent.
In Sahih al-Bukhari 2766, the Prophet describes the seven great destructive sins, including to
... kill the life which Allah has forbidden except for a just cause.
However, this hadith doesn't mention sodomy.
The worldly punishment for the two have comparable consequences. Under qisas the punishment for murder is death, although this can be forgiven (Qur'an 2:178; Sahih al-Bukhari). For sodomy, there's no fixed punishment (Darul Ifta), but is usually considered to be death in some way (Islam Q&A, Darul Ifta). Both of these punishments have technicalities (such as witnesses), and require a qadi (Islamic judge).