I've gotta start by saying everything Me'shell has put out is beautiful, so it's hard to make a decision here...
For 'moving' in an emotional sense I'd have to say "Outside Your Door", just cause that's a song that I can relate to on a personal level more than others.
But now if you want to talk shake-your-booty 'moving': "Shoot'N Up and Gett'n High" is one of my favorites. Especially when her band performs this live.
To the person that asked earlier --- GO TO THE SHOW! I've seen her perform four times since '94 and all of the shows have been incredible. Her band is amazing. Like D'Angelo, Me'shell really needs to put out a live album. It's great because I really love the production on her records, especially her work on the first two albums with David Gamson --- but her songs are incredible live, even better than on cd I'd have to say.
Much love to Okayplayer for selecting Me'shell as featured artist.