Is there any adjective synonymous to "to the point"?
"Jack's and Jill's answers are quite to-the-point, but Mary's answer is the most-to-the-point one"
A better example:
Teacher: "Can anyone come up with a good logical syllogism proving that all humans need the Sun?"
Linda: "I got it! Here, in my encyclopedia page 345 says, 'All fish need water and the Sun' I think it's exactly what we need!"
Jack: "All humans need to live. The Sun doesn't live. So, all humans need the Sun"
Jill: "All humans like fish. Without the Sun, all fish will die. So, all humans will be sad without the Sun"
Mary: "Anything alive needs the Sun (otherwise, if there is no Sun, anything alive will die). All humans are alive. Thus, all humans need the Sun"
so, Jack's and Jill's answers are quite to-the-point, but Mary's answer is the most-to-the-point one