Warning: Contains SPOILERS for Alien: Black, White & Blood #1-4! Since the start of the Alien franchise, Synthetics have famously considered Xenomorphs to be the perfect species. Ash thought this in 1979s Alien, and it later became the driving motivation for David in the 2017 prequel film Alien: Covenant. While fans have known Synthetics tend to consider Xenomorphs as being perfect, its never been clearly outlined as to why. Its been implied that Synthetics think this way due to the Xenomorphs predatory prowess and/or genetic malleability, but those reasons only scratch the surface of why Xenomorphs are the perfect organism.

https://screenrant.com/alien-why-synthetics-think-xenomorphs-are-perfect/