for glass, if you are lucky, hardened bird droppings or stray cat's poop would be very annoying.
You may go for frosted type but cost should be higher.

for PC, it depends on which grade you use.
Mine has been working great for 8 years now, no crack and no leak.

for ACP, this should be the best maintenance free material.
However, it blocks sunlight entirely and may introduce popping sound if installed badly.

how do you define the "quality" aspect?
I would agree if this refers to initial aesthetic.
However, in term of durability, I would assume ACP > glass

As for the price of PC/ACP, you can definitely find cheaper elsewhere.
The price varies with the steel frame size too.

I had seen FB ads that glass psf price can go to RM39psf, thickness is unknown.