I don't know much about the dry cleaning business. However, I imagine that most of your clients are women. Is that true or not? If it is women, then a suit may just turn them off. Thus, I like the hanger idea better than the suit or the penis head (wtf is that in #1)? This rules out #1, #6, #7, and #8.
I think #4 is bad with the white line (offset, but nearly down the middle) of the hanger. Without that white line or if the white line was centered, then #4 would be much better.
Look at the picture to #3 with the text covered up. All I see is an odd question mark. I don't see a hanger unless I know it is a dry cleaning business. People will think you are a help desk or something with that question mark. Thus avoid #3.
#2 is better than #3, but it still suffers from the same problem. At least the hanger diameter is smaller so it looks more like a hanger. But still I just see a question mark.
That leaves #5 as the only option. I do like the text of #1 the best though. Can you combine #5's picutre with the text of #1?
What about
www.DeluxDryCleaners.com? I know internet people here will hate the capital letters, but it works, I got to your same website. And it looks clean, easy to remember, and when you are thinking back at the ad you saw earlier for deluxdrycleaners.com you won't remember there were capital letters to begin with (so they'll just use the lowercase form and the world is a happy place again). Also, what about dropping the "www" part from the logo? As long as your website is done properly, they'll go to the same place. It'll keep your logo clean.