I will have to look up all those routes you mentioned. I'm not even familiar with some of them. The traffic is bad everywhere -- there really is no way around it -- but the beltway is worst. But that's rush hour. If you hit town between two and three, you should be fine.
It's not always an hour and a half to get downtown. In fact, if we drive to the metro and go in, it will be more like 45 minutes. But I always provide a little more time in my estimates, just to be sure. We also can drive downtown on Wednesday. I'll be happy to do that (and we'll be together for part of that day, too, I think). bp