Dell XPS 15, launched earlier than Apple on October 18th and has a build quality that is not "cheap" like other computers, and is priced pretty high compared to everyone but Apple. Besides the Operating System.... Dell XPS 15 Pros - Ad: http://www.youtube.com/watch?v=_Rq0BTkgF-k - Machined aluminum (like rMBP) with Carbon Fiber - Battery Saving HiRes IGZO 3200 x 1800 display, which the rMBPs do not have - 11 hour battery life, which rMBPs have only 7 at 15 inch - Touch Screen (Windows 8, 8.1 can be fail... but if future OS supports better functionality with Touchscreens, XPS 15's got it. Apple will most likely one day succeed in their goal of fusing more of the iOS experience with OSX... but rMBP has no touchscreen, will have to replace someday if this ever happens) - Upgradable RAM and SSD (rMBP only can upgrade SSD, which for Apple is proprietary) - Brighter screen and display than rMBP at about 400 nits (rMBP can only go up to 300%, Anandtech studies have determined the screen to be around 20% dimmer,why its not 25%, don't ask me ask anandtech, but the point is.. its dimmer) - Lighter than rMBP at 4.44 pounds versus 4.46 (rMBP is heavier) - Thinner than rMBP at 0.70'' versus 0.71'' (rMBP is a smidge negligibly thicker, and the Dell XPS is upgradable and the rMBP is not?) - Cheaper SSDs for the future! (even though they are slightly slower than the PCIe SSDs of the rMBP... no manufacturer has made an Apple compatible SSD yet, while there are plenty of options to choose from with the Dell... Dell can even use a Hard Drive and SSD Hybrid! Unlike rMBP..stuck with Apple proprietary.. even the ~500GB OWC drives made to be compatible with the non-Haswell rMBPs are no longer compatible... unless you used it as an external drive with a $150 enclosure? come on... really) Retina Macbook Pro Pros - 2012 Ad (sans 2013): www.youtube.com/watch?v=kq-ZwegiRIU - You get to pay the Apple premium? (as opposed to Dell, which is priced like a non-retina macbook pro. as an aside, i used to think how the Apple premium for the 2012 rMBPs definitely supported Apple exclusivity... but with this new release, theres no classic 15, the rMBP becomes the standard. this means practically every Apple user with a Pro in the near future is going to be a retina. Not only that, as some forum users have pointed out, the pricing is "cheaper", but forces you to pay more for a dedicated card, which is okay, but then again, the XPS 15's got a premium too, less of a premium... but better than rMBP in certain areas... especially the retina part of its name) - Iris Pro (best integrated card, supposed to save battery, but funny enough, Dell did a better job in optimizing the battery life with discrete card only compared to Apple with both of them in the system. Your probably going to game or use 750m anyway more than Iris Pro as 750m beats out Iris Pro anyday, just "less power", which is meaningless based on the aforementioned) - PCIe SSD (but Dell does have SSD) The rMBP might put less strain on the graphics card because of its lower resolution than the XPS 15, but really, all signs point to the XPS 15 as the best value, build quality, and more. People may say the Dell XPS 15 used to suck, and it did, being grossly overweight (5+ pounds... ouch) and just a poor attempt to rip off parts of Apple design, but through multiple iterations, it looks like Dell's one, no, multi-upped Apple this time around and made a machine that is definitely made to compete and beat. I am struggling to determine why I should get the Haswell Retina Macbook Pro, as much as I want to, but the research and the specs seems to want me to get the Dell XPS 15 instead... please help!