I don't really like any of them. They don't say anything to me except "hey, I need a logo". Maybe that's just me. If the image stood by itself, none of them are worth anything. They say nothing about you.
What is one distinguishing feature of your business? A key selling point? If it's a power button.. Dude.. Why should people do business with you? Because you can push a power button?
Let me give an example. My logo was designed (by me) with a couple of concepts in mind. First, the speed of my service. Second, the color. Blue makes a certain statement. It's a calming color. It's also the color of authority. People are stressed. They have no idea what's going on with their computer or how to fix it (or they wouldn't be in my office). They want to trust someone to give them the final solution, fast.
I equate it to someone going to the doctor, thinking they're dying. They're all in their head about it, panicked and stressed out. The doctor says "you have a headache. Take two of these and call me in the morning".
I'm the computer doctor (as are you).
So, to convey that I used a swoosh with blue initials. Keep it simple stupid. Your logos say "Yet another generic computer shop with no creativity or sense of direction". That won't attract good clients. So, list out your selling points. You have 10 seconds to tell a prospective client everything about your business. Then, once you've got that.. Make a picture of it.
Me? "We make computer problems disappear...fast." The end.
Best of luck with it. I look forward to seeing the end result.
