"i voted for sandman because its a good effort and not rigorously supported with image based back drops (i didn't know we could do that?)"

I don't think all of the other entries are that much based on imageplanes.
I myself for instance, only used an imageplane for the skyline because of timeconstraints the rest is completely done in maya.
The picture of the new york inner city also wasn't done with imagebackdrops.
So to make a long story short; if you like it you like it, that's just a matter of opinion, only if you want to give some sort of argument try to give a valid one(nothing personal mirek

)