What are the key points of disagreement among the sources?

What are the key points of agreement among the sources?
What are the key points of disagreement among the sources?
do any of the sources appear to be outliers? in other words, are there any sources that bring up issues, or make assertions, that the other sources do not discuss?
which sources appear to be the most powerful or influential? other sources that all of the other sources deem highly authoritative?
are there any sources who’s assertions seem dubious illogical or unsupported by the facts?
How has thinking about your topic over time? Are there any beliefs that have fallen out of favor?

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