I like entry #3 more than #4 for the use of color. I like the font in both designs because it is clean and easy to read.
I like the tree in general. Are there any other tree graphics we could see for comparison?
I like the slogan on the 3rd design, although I have read the feedback on another posting that the slogan is too long. If we took out "through better communication" would it look better and still get the point across?
Actually, #3 and #4 are the same logo, #4 is just a variation of #3. I drew the tree specially for this contest, is an oak tree, my favorite :) I can create more trees for you, so you can choose between them, do you have a favorite tree?