man if i had to choose one of those two.it really wouldnt matter because id have to paint it reguardless.i usually like blue and white like on the 750 and 600 but the 1000 looks horrible it doesnt flow well at all.as for the black and grey,when i look at it my first reaction is blah its boring.if it was all black it might look good but the grey just kinda makes it look boring.i can understand not liking the 06 zx10 but not liking the looks of those hideous beasts over the ninja.if i was gonna buy a liter this yr and didnt like the kawi,id get the 50th anniversary yellow r1.i can understaind you picking that over the zx10 but those gixxers are disgusting looking in my oppinion.
edit:i just figured out the problem with the blue.the black frame throws it all off.you got white,light blue and then dark blue.the black is too close to the dark blue and it clashes or somethin.if you had to get that,id polish the frame it would look alot better.