Which window?

[mook1178]

Would my paph be better suited in a northerly or southerly window?

[charlesf6]

Unless you have it shaded from the outside (tree, building, stucture e.g.) or a darkened curtain I would keep it out of the southern window. Keep it away from the direct sunlight.
I don't think the northern one will be adequate either if it doesn't get enough light; you'll have to figure out that somewhere in between.

[rbarata]

A lot of factors can influence the window choice, some of them mentioned by cf6 in the last post.
A good rule is:

- thinner leaves (paphs, for ex) => no direct sun or too bright light.

- thicker leaves => can tolerate brighter light

These are just general rules...in both cases you have exceptions. Find what your plants like, if they like brigther light use the southern window (no direct sun). If they prefer less light choose the northern instead.
Then see how the plant grow, its leaves green tone (brigther or darker), if it blooms or not.
If necessary adjust.