Which of these four?

Hi all,

So it's time for my company to do a laptop refresh for all its employees.

Now, for the very first time, they are giving us four options to choose from. These options are:

Surface Pro 4
Dell XPS 13
Dell Latitude 7270
Dell Latitude 7470

My question is obviously which of these should I be choosing from? Performance is the most important factor and then comes everything else.

I have attached a link to the specification provided since they kind of vary and...

Which of these four?

Which of these four?