Problem: He liked the calm of cleaning with a broom more than the bustle of the vacuum so the

My choice: broom was overused.

Problem: Elena is a more efficient teacher than Tanya because

My choice: Elena takes the time to teach the students.

Problem: Kayla is interested in card games, but Natalie is the opposite, so

My choice: Kayla is more interested in game theory.

Problem: Samantha had more crayons and art materials than Monica had although

My choice:
Monica liked to color more.