Both made good music. G Unit was more mainstream, and made some good records, but Dipset arguably made better music. Also, Dipset was more influential than the unit. Examples? Cam had nikkas tryna rock Pink. Terms such as no homo, u mad, which are still used to this day. In 06, Jim had the whole rockstar look goin on, and had alotta rappers and fans tryna dress like him, such as Weezy. Lyriclly, Banks is better than every nikka who was apart of Dipset. The dips had a huge focus on "swag"(fukk that word), while g unit focused more on the music and the grittiness of their music.
Also, the whole heatmakers/dipset sound was dope.