That depends on on the gravitational darkening of the star, which itself depends on the stellar rotation rate.
Stars that rotate fast enough to distort them into an oblate shape (e.g. Vega, Altair) have a temperature difference between polar and equatorial regions, so a planet in a polar orbit around such stars will get more radiation from the star.
For a sun-like star, I don't think there's a noticable difference.
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