2 looks a lot better to me, but you should try doing something in between, where you AA only the lighter parts and leave daker ones black
#2 is technically superior and fits better with the environment. :)
i like 2 better when it has background behind it :)
The difference is... character's contour :) 1 is Black, 2 have many colors :)
The only difference I could spot was the ground brick formation D:!
Two is better, at least in my opinion.