Vado has a good voice, sometimes good flow, but instead of doing something original he's trying to fit in as well (his beat selection recently shows this well I think), Freddie Gibbs is original and has many good tracks, but I don't see…
From this list, I only like Waka's music, at least certain tracks from him. He tends to bring energy.
Drake is more R&B than rap, Kis Cudi is not really hip-hop anymore, Nicki Minaj is making pop music plus she's a fake attention…