Hadith critics discussed a limited set of reports in the two Sahih collections with respect to hidden defects and anomalous contradiction. Fewer technical objections can support an overall comparison, but the number of criticisms is not the same as their validity.
Each objection must be assessed through the relevant chain, supporting routes, textual variants, and the critic's evidence. A criticism is not proved merely by being voiced; nor is a sound answer supplied merely by identifying the collection in which a report appears.
The general comparison is an aggregate judgment. Each individual report requires particular evidence.