The Mixtape About Nothing had production mostly by Best Kept Secret, and also featured some J Dilla, The Roots, Mark Ronson, Osinachi, and more.
More About Nothing was well varied, and featured DJ Omega, Kosmik, Mark Henry, Best Kept Secret, Bassheads, Yogi, Osinachi, Cool & Dre, and more on the beats.
The Album About Nothing was also very sporadic in terms of production. JGramm, DJ Dahi, Best Kept Secret, Jake One, Osinachi, DJ Khalil, Soundz, and more delivered instrumentals for Wale.
Now, which of these you prefer will depend purely upon your preference (duh), but let's look at the different sounds these producers brought to each project.
Best Kept Secret produced a lot of jazzy and funky sounds for The Mixtape About Nothing. "The Vacation From Ourselves" and "The Grown Up" were driven by horns and percussions, and "The Hype" could have been released by Blue Note themselves had it been an instrumental. In order of mention, those tracks sampled Curtis Mayfield, Hugo Montenegro, and Harvey Mason's futuristic soul sounds.
The Album About Nothing definitely has a modernized sound to it. A lot of the beats are slow, fitting in with the current style of rap that everyone is putting out. We don't want to say that Wale is riding the trend, but rather embracing some of those sounds to create a very 2015 album. He did a good job of it, as DJ Dahi's "The Helium Balloon" and Osinachi's "The Pessimist" allow Wale to embrace the half-time steeze.