3 or 4 for me.
1 I just dont like crossed words, or the blurred edges. Which do you read first?
2 is actually good, but save the design for a restaurant. Doesn't fit a salon to me.
3 Plain and simple, classic. Its a logo that cant get outdated.
4 is good! the brush strokes immediately reminded me of the way they paint on the color on the hair then roll it in foil. Great way to combine the logo with the work being performed. The big A Im not sure about. Its not bad, and I cant think of anything better. Mabie add a drop shadow to the words.