Dre produced 3 himself (all bangers IMO..he also co-produced another..so 3.5), and Just Blaze had 3 too. The rest is divied up between Pharell (I hate his beat on the album), Swizz, Kanye, and others. I like it a lot...especially the Dre tracks.

As for the Snoop album...I must say I really like it too...
Once again...the Dre tracks shine here (3 I believe)...and that's an understatement.