in the greater sense of careers and influence then Nas wins.
but Kool G Rap is one of the main influence of Nas early in his career.
so knowing how Nas thinks, he would be respectful and give props to Kool G Rap before he claims to be better than him.
both are from Queens NY but not the same part.
Kool G Rap is older then Nas and was established already when Nas started coming out and making a name for himself.
it was Kool G Rap that presented Nas a trophy at a local rapping contest in NY back in like 1987 or something like that.
before Nas even had a deal.