I'm going to have to go with Earl Sweatshirt. I want to see how he's evolved over the years especially since leaving Odd Future. I haven't kept up with him but I do remember some time ago reading an interview where he expressed having to leave Odd Future because it was impacting his sobriety. He is a talented artist and has dropped bars on some Tyler albums so I'm happy to see what he comes with.
Also looking forward to seeing what Kendrick drops.