Ok first off if you are a Mac guy there is no substitute for an Apple computer and if you game or just like PCs more, just get a PC. In June I recently bought a 2017 MBP 13" Non TB i7 16GB 128GB and w/ tax it came to $1900. Being stupid, two weeks ago I was drinking soda in bed while writing on my laptop and I went to go help my wife with a DYI thing for our wedding. Well the soda can spilled onto my laptop and when I got back it was shut off. I tried drying it off and sitting it in rice for a week, no dice. Apple wanted over $1600 to fix the computer, pass. I managed to sell my paperweight of a laptop for $500 on Craigslist while disclosing that the laptop had WATER DAMAGE.
I recently ordered a Dell XPS 15 9560 i7 16GB 512GB 4K w/ fingerprint reader for $1580 shipped (2nd day w/ NY taxes) off the Dell Outlet classified as "NEW". Right off the bat, this is the configuration and computer I should have bought over my 2017 MBP 13" since the Dell has vastly better IO, 4K screen, up-gradable Ram/HD/WIFI, better graphics, and lower price. This isn't to say that the MBP isn't good since it has the best speakers, best build quality, and color wise the best screen. What I hated about the MBP was the price since I spent almost $2k on basically an ultra book, 13" is a tad too small, and the keyboard had clicking/sticking issues.
Okay so no matter how you cut it you are not going to get a 2017 MBP 15" for $1580 from Apple new or even refurbished. Dell offers three versions dent/scratch, refurbished, and New. The concept of an outlet item being New is a little weird but what it is that New products are either overstock, cancelled orders or customer returns. All products classified as new have the original software seal and have not been powered on or used. New products may come in original packaging or repackaged and shipped to you in Dell Outlet packaging. Technically the New version of the 9560 is $1649 but if you call or live chat the Outlet sales team they will graciously give you 10%-12% off with free 2nd day shipping.
Comparing Mac to PC is never a direct comparison but benchmark wise the 9560 crushes the Mac especially in gaming and other GPU oriented tasks. The Mac however has better battery life compared to the 4K Dell (8 hours vs 6 hours) and the Mac is thinner and lighter. There are countless articles comparing the two laptops so I am not going to provide any results or anything.
For me I am going to miss my Mac since Sierra is really really good and integrates my iPhone amazingly. OSX tends to have less viruses and for me is just more aesthetically pleasing. Also while you do pay a ton of money to begin with Apple, I have found resale values on Apple laptops to be amazing, which isn't something PCs are known for. Overall value wise it's very hard to get past Dell's value proposition once you start considering an Outlet item. If you are flexible on which software and operating system you use the Dell XPS 15 is a great pick.