Well its all a matter of opinion, however, in my own personal opinion though, I think Lex Luger has developed a very unique sound to his heavy trap instrumentals, whenever one of his tracks come on, I know it's a Lex track, so (IMO) Lex's originality is something to consider. I am not nearly as familiar with Mike Will as I am Lex though so that could be a reason i feel that way. BTW I'm not saying he developed a new genre, or that he invented trap beats! Im just saying he has a familiar sound to alot of people including myself.