#6, #4 are interesting #5 has too much height. We will use the logo on a narrow horizontal billboard so that would not work for us. #6 works because we can use the text only for the billboard and text + emblem on plastic cups.
#6 The font may be too hard to read (u and m look very similar). Would be nice if you could try a different font. It might also be a little too thin. It should be easy to read, also at a distance.