#1 got my vote immediately as the first thing I noticed in the picture was her smile.
#2 might have the best overall body, but I'm not digging her face. She reminds me of a co-worker's domineering wife.
I would normally default to the pixie, but she's pushing maximum density, has a nasty tattoo, and seems very unhappy in general.
Thus, I went for the second shortest. No, it doesn't seem like the lights are on, but we're not talking marriage here.
"Happy slaves are the worst enemies of freedom." - Marie Von Ebner
"It was always the women, and above all the young ones, who were the most bigoted adherents of the Party, the swallowers of slogans, the amateur spies..." - Orwell
#1 was the clear winner. Even with that little tattoo. But it's little. Rejected #6 for the same reason. #5 looks pretty dim and just seemed sloppy overall. #4 seemed plain, which left me with 2 + 3. #2... something in her face said she was a bitch. So I went with #3, even though her ankle is broken.