Wisconsin. I think the trails are going to be a mess. All the folks who aren't serious cyclists are prolly going to figure they can get around by bike,but will be afraid of the traffic. Wisc is busy,but it's only hairy until Friendship Heights when the traffic starts getting slowed down,and worst case scenario you could run the sidewalk from Bethesda to FH since there's very little foot traffic. Wisc will take you straight into GTown,or you can take one of the side streets to get to Conn,then take Conn down to Dupont or turn onto Calvert to hit Adams Morgan or keep heading east. Can also run Wisc to Mass and bomb straight down into Dupont.