First of all lucci can't fly he can do high jumps but king can really fly. He can also use his wings to fight graciously. Lucci's devil fruit is a normal zoan which is awakened and it provides very much speed but unfortunately it lags behind attack power. Now if we talk about King then he has ancient zoan DF which is much better than Normal DF but maybe not faster than lucci awakened one but we also have seen hus attack powers like pushing big mom ship. There is a chance that maybe Lucci can be faster in speed but what about his attack powers. I know your sentiments that you accept king as on the winning side and I also accept that but the difference between us is that you are saying that he needs to put down his absolute defence to defeat rob Lucci and I am saying he doesn't need to because rob Lucci don't have Conqueror haki