I like both and it depends on the style. My bedroom upstairs has 2 windows, the biggie, has a net, but it's a nice pattern, not old style, got off Amazon about £7, the side window, half the size has a white voile. My bedroom is southfacing so when the curtains are open there is light and lots of warmth (I have slept during the day, On the bed, in the sun!)
John Aird, via Amazon, cheap and cheerful i thought. The landing window has one, let's all light in.
Our house is 1900's, low ceiling, beams etc so if there is a chance of 'let there be light, we use it!'