The stores annoy me to no end for 1 reason, they are always rearranging them. We've gone once a month for this whole year and I'll be dang if they weren't different every time we went! And they have no logic to them. Worse was when they tried by character so you'd go one place for ladies Mickey, another for ladies Princess and another for ladies Star Wars. Hard as heck to find a thing.
I do love to shop the Star Wars store at HS and the Dooney and Vera store at MK (never can remember it's name)
Also, I find myself browsing around in the store back in Pete's Silly Sideshow. And the store on Sunset in HS, across from Planet Hollywood (again I can't remember the name, just know where it is)
I'm not sure I've ever found unique things in any store, aside from Mento Mori. For instance, I don't find items in The Star Wars store at HS that aren't in other stores too but it is nice to be able to look in stores that have fewer choices. It makes it easier to spot things.