Hi A.!
I had a double stroller - the sit and stand type and we didn't really like it. My oldest daughter didn't really like riding backwards, if she was sitting and if she was standing, she wanted to be walking.
Prior to a trip to Disney World, we bought a double jogging stroller - A BOB Revolution - It is a side by side stroller, the front tire can be made stationary. It breaks down pretty well - unless you have a small vehicle. It was on the expensive side - however, this is why we chose it. We love to walk around our neighborhood and the park system. The wheels are rugged enough to do that. The side by side feature allows the 2 passengers to be facing the same direction. The canopy for each side is separate - allowing for independence. The seats also recline independently too. There is a storage basket underneath. You can purchase a cup holder accessory as well as a bar that fits on it to accommodate a car seat (like other travel system strollers). The biggest reason why we bought this one was the weight limit - it will hold 100#. We have tested it - definitely since we now have 3 kids and all together they way about 100# and they some times get lazy on our walks and we have to cart all 3 of them in it. It is a tight fit, but they manage. It is ADA compliant, so as long as Mall doors, etc. are compliant, you will be able to get around the mall, etc. Also, even with a fair amount of weight in the stroller, it is REALLY easy to push, etc. with one hand. The manueverability of the stroller is AMAZING. I cannot say enough great things about BOB.
I am in the Cleveland area and there are a few places that now carry them - however, I purchased mine from www.strollermama.com They were awesome. You can even go to their warehouse and try whatever is on their website (if you are local to them).
If you need any additional info, please let me know.
Good Luck!!!
K.