Solid programming laptop in 2017

I have returned! I come wondering what the current landscape of laptops is for programming.

I've been eyeing the following:

• Spectre X360 13
• Dell XPS 15
• Gigabyte Aero 14/15
• Razer Blade

Comments on any of these are welcome. I'm looking for something good single-threaded performance that will last me an entire day of programming. I don't even care about a dGPU, but seems like it's hard to separate the dGPU from a good CPU.

My ideal laptop would be:

• ~14"...

Solid programming laptop in 2017

Solid programming laptop in 2017