I think I should have said ceteris paribus. I am aware that ATP ranking does mean you can teach, especially if you believe the saying "there are those who can do and those who can teach".
Of course in a perfect world, I would know who would be the best teacher as it applies to me. Or maybe find an undiscovered Nick Bollettieri-type pro who will teach me tennis for $20/hour. There is many questions we can ask or points we can raise but let me explain the poll.
If you HAD to make your decision purely based on the information provided above, what would you select?