I just used "prevail on" in a sentence. The whole sentence was: "If we can prevail on them to provide some donuts, the meeting may be more attractive." Should I have said "upon"?
I understand there is another question here which marks "upon" as just being more formal: Use of "upon" or "on" in phrase
So let's keep the scope of this question just on frequency/appropriateness in conjunction with "prevail".