Athletic sims get a lot of wishes to work out.
yes, but since your sims hasnt done the "Work out for 10 (or 12, i dont remember that exactly) hours straight". When your sim completes that wish, it probadly wont show up anymore.
And about the topic question, I think the "Green thumb" is a good one, too. Because, if your sim wants to plant "something" Great (perfect, etc), you'll get about 1000 points out of it. The same to "Angler" trait, and many more trait that involve with your sim's action everyday. I mean like the Genius with Logic skill, Athletic with Athletic skill, Handiness,...