Personally, I think the second two look like crap. I like a more austere design, without all of the fancy baubles and shiney lights and side windows. I think Alienware, for example, makes some of the worst looking cases. But that's just me. The first one isn't bad, if you get rid of the lighted fans, but is definitely overpriced if that is just for the case. Go for cases that have sliding drive bay mounts, rather than just screws. They make life a lot easier.
I especially dislike cases that look like that Kandolf one... But again, its all personal taste and style.
If you are spending more than 60 or 70 dollars on just a case (including the fans that take a few cents to manufacture), I'd say you are buying the wrong merchandise, from the wrong places...