I don't think "big words" make you ill, but neither does a limited vocab. There will always be ppl who connect with a rapper, from Canibus and Eminem to Gucci Mane and Project Pat. Obviously, some people have more extensive vocabularies than others. Some people are more versatile when it comes to topics and knowledgeable about current events. Atleast that's how it comes through in their raps. To be good is subjective, there are people who don't like Pac, or biggie, or Jay-Z, or whoever else "hip hop" people say is good. Trap n*ggas like trap music. Club people like club stuff. It's a certain type of person that listens to Lupe and actually understands every line...they think differently.
Lloyd Banks and the based dude both talk about fu*king girls....Lloyd Banks just does it way better than him.