March 13-19 Washington is going to be packed with the Resist in March. There will be non-violent civil disobedience, speaking, rallies, marches, etc going on all over Washington that week as a joint effort of many different groups.
http://resistinmarch.org/
Probably not a good time to do a Ron Paul March during that week. I will however be attending this event in Washington D.C. during that week.
My opinion is July 4th is going to being extremely crowded in Washington. We will barely be noticed. I realize this is an "easy" day for people because they have off work, but my point is that this should not be "easy" or have no real impact on our lives. It should be something we fight for even if it means taking a day off of work and keeping the kids out of school one day. It shows our commitment to our cause.
Look, no one said this was going to be simple or easy. If we are the largest group on any day decided upon, then we will get more attention than the fireworks show used to distract the sheep!