A newcomer Snoop had Dre on his album. and he still held his own. Now if this was Snoop Presents Nipsey Hussle it would be a different story
Those are two very different situations.
Dre first showcased Snoop on his album-The Chronic--a classic. His FIRST album as a solo artist mind you. Doggystyle had 0 Dre verses, though it benefitted greatly from Dre production, and Dre did the right thing by not putting himself on it. Dre was picky back then, if you had Dre's blessing you were worthy of attention.
Snoop on the other hand works with EVERYBODY, so a feature from him is next to worthless. Snoop featured Nipsey Hussle on his TENTH studio album.