Which preposition to use with conversers

of Occurrences 2%

But beyond this she was the pleasantest converser of all the ladies of the day.

in Occurrences 1%

A woman who looks the converser in the eyes, and does not allow her glance to wander and become distrait, and who does not interrupt before the recital is finished, can be sure of popularity with both men and women.

than Occurrences 1%

You could not in all London or England hear a more fluent, a more brilliant, a more exquisitely elegant converser than Sir James Mackintosh; nor could you ever find him unprovided.

Which preposition to use with  conversers