Originally Posted by
DENROC
Spent 10+ years in DC . Would rec the Key Bridge MT for location and ease of getting in,out and around DC . Familiarize yourself with the Whitehurst Freeway
That property might even have a $95 rate available.

I've used it and it still seems to be valid on a lot of weekends. (Marriott Rewards rate, probably M11 or M12, and perfectly valid to use if it's available.)
They even gave me breakfast chits when I was there in December and I also love the location. I mean, DuPont is fun too...both are walking distance to tons of stuff...sort of a personal preference decision on which location you like better.
There's a residential neighborhood a block away if you need some legal overnight street parking.