You have some peculiar ideas, Dzentungen_Blacksmith!
Both kinds of heels are fine, we better remember porn is a phantasy entertainment product with payed actors styled as the dirctor wants essentially.
What is easier to wear therefore isnt a category, as simple as that. Generally heels are rather a problem for the studs involved as they can hurt them while fucking in rc for instance. There are ways and positions to avoid unwanted collisions, though. All the rest depends entirely on the director allowing the girls to get rid of their heels / the studs to take the girls heels off or not. I am definitely for the latter - because of visual customer pleasure.