i own both; i feel like urban decay is higher quality than hard candy, but hard candy pkging is UBERcuuute, so they still got me.
i think urban decay products have more pigment in them, too, which also makes them SEEM higher quality.
popBEAUTY products are also super-cute and still really good quality.
i love their eye cake thingys!
and cheeky cakes!
and lip ribbons!
hahhah. i buy way too much makeup.