Simplifying SETI

SETI is the Search for Extra Terrestrial Intelligence. They use massive radio-telescopes to search the sky for signs of intelligent life. But the sky is big. Where should we point the telescopes to improve our chances of detecting a signal?

Rather than point at random stars, or promising looking constellations, I propose a more scientific approach:

Find a planet where the length of the year is an integer multiple of the length of the day.

This is based on the theory that it is easier for an advanced civilisation to adjust the orbit and/or rotation of their planet than it is to program computers to correctly deal with fucking leap-years.