I believe that pacing refers to the speed at which the speaker pronounces words and phrases, basically the speed at which somebody talks.
"Sense" being practical, intellectual, and logical in everything. This characteristic is manifested in Elinor.
"Sensibility" refers to being sensitive, emotional. The exact opposite of sense. This characteristic is manifested in Marianne.
No, one quality does not win over the other. One must possess both qualities to become a well rounded and highly productive individual.
