Like the direction you're going with #8, but the cartoon feels a bit too hipster for me. I'd also like to see "The" be smaller and "Nerd" be bigger. Some color would be nice too.
Love #11! Can you create an alternate version without the arm holding the pie graph and adjust the eyes of the man? Keep the glasses and eyes very simple.
My favorite is #67. Can you use that version and provide some alternate versions? Try to simplify the overall design a bit and introduce a yellow or purple color palette. However, keep it to 2 colors. I like how you make the "SMB" and "Nerd" part two different colors.