I like them createmx, very professional and would look good on a plain light background although in some of them you could try experimenting with a bit of colour. For instance try splashing some colour around the create one, an idea could be having each letter a different vibrant colour and it would really stick out but overall i like them, keep it up
Not too sure of the others - they'll just fade into the background. I probably wouldn't even notice them on an active site. TopHat and CupToGo seem to stand out more. I like that in a logo.