Planet's and their poles

[maxsdaddy]

I think it depends on how the poles are related to the plane of the orbit, more than how much land is beneath the pole.
If the north or south pole is at or near 90 degrees to the plane of orbit they will stay "icy". The farther the axis of rotation deviates from the plane of orbit, the greater the effect solar radiation will affect the planet. The distance from the solar source is also important. Uranus is a great example in our own solar system. It's axis of rotation is nearly parallel with its orbit but its distance from the sun is so great that there is far less seasonal change than the same axial tilt would have on one of the rocky inner planets orbiting much closer.