I remember Jay-Z saying that he prefers not writing because it's more natural, it feels more real to him. That didn't click with me until I started rapping out loud after thinking, and personally it's much better. I feel like I get too wordy and think too much on something when I write. If it comes off the dome, it has more of my personality on it. It's not the first thing but it's just a thinking process.
BIG and Jay would go off and think all day, that's how they did it. Like on "I Love The Dough", they both went off together thinking of rhymes or they say Jay just walks back and forth mumbling to himself. I prefer doing the same but I write too. It all depends.
Gucci does not write. And he better not say he does. TI said he started back writing on Paper Trail but I honestly can't see a big difference. Ehh...