I think Maia is better, but it's a pick em.
I think it's a pick em as well.. but actually Aoki finished much tougher competition with his sick ground skills then Maia. Maia only subbed cans so far except Chael!
I don't agree that Shields is a one dimensional grappler. He is a two dimensional grappler: great wrestling and great BJJ.
Well if you look at it that way, then Aoki is also a two dimensional grappler with his Judo and BJJ background.