Is it appropriate to show that a conference paper is prestigious by comparing the conference rejection rate to that of Science and Nature?
I am a CS researcher and I know the reputation of CVPR conference.

Please see the following situations:


People submit to Science/Nature journals when they see that their work is highly qualitative and could give a high level of contribution to the scientific world. It is not like someone does a small thing and submits. So, if 1000 papers are submitted to journals like this and only 450 gets accepted then, the acceptance rate is far high.
However, similar case as above does not happen in conferences. Anyone can submit anything, even if it is a small contribution.


Please remember, it is NOT WISE to compare conference with such journals. Journals are far better than conferences given the amount of contribution you may find in the published works.