What type of media will you be editing?
Do you plan on adding RAM? 8GB RAM isn't much.
I believe an AMD gpu may not perform as well with Adobe apps since it uses OpenCL hardware acceleration only, while Nvidia GPU's use both OpenCL and CUDA and Adobe is optimized much more for CUDA, so I'd avoid anything with AMD, but maybe look at benchmark comparison's.
I don't know what the performance increase is of a GTX 1060 over a 1050, but personally I'd be a bit embarrassed pulling out an Alienware laptop in front of a client vs an XPS. For me I also prefer the thinner more portable design of the XPS.
Assuming you can upgrade the ram and harddrive yourself in all those laptops, you will probably save money by buying the versions you listed, then adding another 8gb stick of ram yourself to get to 16gb ram. But if you ever want to go to 32gb in the future, you'd have to ditch both 8gb sticks and buy 2x 16gb sticks.