Where’s the best hamburger you had in Tokyo or Chiba area?

The other day I went to Shake Shack. I had heard good things about it so I was excited to try it out. When I got to the restaurant near Tokyo Station it was busy. After looking at a menu I ordered a Double Shack burger and regular fries.  The fries were really good but I thought the burger was too soft and mushy. I realized it was fast food. It’s a little higher quality than McDonalds but actually I prefer Burger King’s Whoppers.  Overall I give Shake Shack a 6/10

So I ask you. Where’s the best hamburger you had in Tokyo or Chiba area?

Nik.