I picked him to win after JZ was eliminated. I think he could beat Aoki if he implements the same game plan as JZ did in the first fight against Aoki.
Besides, Aoki is out with an injury, no? Kawajiri would be a tough fight for Alvarez though, maybe even Uno. I haven't watched the fight, but Uno was apparently very game. I was very surprised that he beat Ishida.