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CEO, BS Comics
I would assume that lifting one's arm into the path of a single bullet is something several characters could accomplish depending upon the distance at which it was fired - simple vector geometry - without any major superspeed advantage. When I referred to WW deflecting bullets, I was referring to machine-gun fire from point blank range, from all directions, (and she was possibly blind at the time too, don't remember well.)
With regard to swinging Mjolnir I always considered that a property of Mjolnir rather than Thor.
Running across Manhattan is a better one, but relatively indirect. I'd probably have to see it to discern how relevant it would be to H2H combat speed.