Montgomery Mall is located in Bethesda, where all the rich people live. LOL. Seriously though, there are around 183 stores packed into 2 levels of shopping... bliss? Anyhow, this is where you can get your Abercrombie, Banana Republic, J. Crew, Tommy Hilfiger, and more brand names that only rich or crazy people can afford. LOL. And for people like me there's Old Navy, Gap, and American Eagle. In all seriousness, this is a super mall with a hip atmosphere. It's pretty to get lost, so if you've got a group, try to stick together.
I used to work at Wheaton Mall (at American Eagle, before it was replaced by yet another urbanwear retailer). This collection of 130+ stores (including Old Navy, Gap, Rave, Jean Machine, and Up Against the Wall) is located among a rapidly growing Hispanic population in the Metro area. The multicultural influence in Wheaton is more than apparent as you pass various ethnic restaurants, music stores, and clothing boutiques. I love to hang out in Wheaton, perusing the secondhand shops. It's one of the hottest spots in the area, if you ask me.
City Place is a 50+ store mall located in the heart of downtown Silver Spring. You can expect to find stores like Nordstrom Rack, Ross, and Marshalls. It's not my favorite mall, but I've scored a few good finds there.