There rarely is a single best of anything, so it depends on the use case and further circumstances. But the choice of a CSV library is unlikely to have wide-ranging repercussions, so I suggest to test a few and go with the one you like best. The https://coderanch.com/how-to/java/AccessingFileFormats page lists a few more.
I agree with you, it depends on circumstances. One lib may not be the best but popular, and I am looking for the most popular.
And thanks for the useful link.
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