Young Jeezy - Trap or Die and G-Unit's last three mixtapes.
I like it more when independent artists showcase theyre music on mixtapes more then mainstream, it gives us the audience to know them better. Top three on the mixtape game hands down: Gucci Mane, Max B and Charles Hamilton. CH came out with two mixtapes within days more like hours of each other, Well Isn't This Awkward and My Brain is Alive. CH came out with 8 mixtapes last year and he's not stopping but I'm still not a fan.
Sometimes I wonder if you can showcase too much, I mean CH has over 10 mixtapes ALL WITH NEW MUSIC within the last two years and he's not a name yet. He needs a co-sign bad, Cudi has had one mixtape and a feature on Kanye's 808 album. Even though he's known for Day N Nite, he's still more recognized then CH. Same could be said for Asher Roth, one mixtape, one single, one more then CH. CH needs a single, BAD!