See hear yourself: you cannot in either case
But: online resources offer more easy access to foto, video, original resources, so you can better check +/~ for Wiki
Plausible: can be judged similarly for a text in Wiki as in Britt
But: Wikipedia: offers access to all mutations, discussion, hence more context +/~ for Wiki
Trust, expert
Britt wins on this
Frequency
Wikipedia is visited by many people, errors are claimed to be detected and corrected soon. 'Group intelligence' is used often on the web, e.g. in star-ratings, or automated: Google ranks
Conclusion:
3 items are better for Wiki, 1 for Britt. Best if combi. That is exactly what Wikipedia is going to do