I always press whichever way my blocks lands on my ironing board with my iron sliding to the right ....... LOL I really do, but my only exception to this is pressing a dark dark towards a light light. I will not so that. But other than that I press it to the right whichever way it lands. I am pretty good at lining up seams with both ironed the same way or opposite way, so it doesn't matter to me. Plus I rarely follow a pattern, I kind of just make things up as I go, so the direction of pressing makes no difference to me.
Rachel