If you're looking for the best soccer cleats for midfielder the best way to find it is by knowing what are the best midfielder in the world of soccer wear for their footwear when they were on the pitch.
I've done a little bit of research about this, and by listing some of the best midfield player like Frank Lampard (England and Chealsea), Kaka (Brazil and Real Madrid), Xabi Alonso (Spain and Real Madrid) i'm able to find out what they were wearing for soccer cleats.
The answer is, all three of those midfielder is wearing Adidas Adipure II.
Although the soccer cleats that these three soccer player wear was custom made for them by Adidas, but they are wearing the Adidas Adipure II TRX FG.
So that's the answer from me, the best soccer cleats for midfielder is the Adidas Adipure II TRX FG.

You can checkout this soccer cleats with variety of colors and design from Amazon's list of adidas adiPURE II TRX FG Cleats
You may have different opinions about what is the best soccer cleats for midfield player. But, this is just my personal opinion, as i was a long time user and a fan of Adidas soccer cleats. As a soccer player myself, i always use Adidas and my favourite soccer cleats is de kaizer Backenbaeur.
It's an classic soccer cleat from Adidas, but that type is just what i like to wear when playing soccer. I'm a defender, and de kaizer is just perfect for my role. It's very light to wear and perfect for making a tackle and for clearing the ball far away from the penalty box.