I don't think Lenovo's efforts lived up to the glory of the Thinkpad line, but I will give them credit for the X1 Carbon. Though the Carbon only comes in a 14" model.
From an industrial design standpoint, the Surface Book is fantastic and demands respect. I bought the Surface Book when it first came out, and that thing was always overheating, which is a no-go for something trying to be a tablet/notebook. It also suffered from various issues when it launched. Microsoft actually asked Best Buy to stop selling them for a brief moment while the issues were fixed.