that was tough. I liked 5, 6, 7, 8, and 11.
#5 lost because I felt it shoudl have the city name
#6 got knocked out because it jsut looked odd after a while the perfectly round stadium (very cool idea though)
#7 lost because I coudlnt tell what the heck that red thing was
and #8 lost because it reminded me too much of a trucking company out of QUebec, which is actually very cool
so hence my choice