They are always asking a writer why he does not write like somebody else, or a painter why he does not paint like somebody else, quite oblivious of the fact that if either of them did anything of the kind he would cease to be an artist.
You have, let us say, a promising politician, a rising artist that you wish to destroy. Dagger or bomb are archaic, clumsy and unreliable - but teach him, inoculate him with chess.
You have too take from each artist what works for you, and then create your own sound. You put different combinations in the mix and it becomes something unique in the end.
Who is the best rapper ever? I'll probably have to say Eminem. I would definitely say Eminem. He came from a whole another culture, literally. Mastered it, outsold everybody and he did every kind of record imaginable. He could take any topic and make a song out of it. I haven't seen any artist do that yet.
While one should always study the method of a great artist, one should never imitate his manner. The manner of an artist is essentially individual, the method of an artist is absolutely universal. The first personality, which no one should copy.
Making music videos, I try to bring musicians into the logistics of filmmaking, and I try to preserve whatever's of value and achievable in their idea. If it's something I can't achieve, I tell them straight. You want to make sure that the artist really loves the idea and is committed to it, otherwise they're not going to feel great when they're up there miming it.