After reading through these very capable, very different, Haswell-E configurations I finally whittled down to three choices from the original six which caught my attention. I made my selections based on value, performance and balance, as well as keeping in mind that anyone buying these high-tier PC's likely are already using a decently capable system. Therefore, and with those things in mind, I also chose based on which is sufficiently "future-proof" (if there is such a thing).
My first choice has to be the Digital Storm machine for sheer performance and clearly it is the most future-proof. Even for the price which is higher than the others it gives all the best parts and there is nothing left to want with this build. You simply will not need to add anything to this build for years and it will still be a top performer across the board.
My second choice is the CyberPower PC due to its value, at $2.3k, and the likelihood that for most gamers this will be a build that they themselves can and will create. It has the lower six core processor but still balances the GPU and RAM appropriately and anyone with this machine will experience a top-notch rig and spend a lot less to do so. It will also last its buyer a good long time with very capable hardware and again, superior value.
The third choice was the hardest as there were a few I was going between but in the end I had to choose the Puget machine due to a decent value, keeping the 8-core unlocked CPU as well as the amazing kudos I give to them in the name of innovation. The single gamer will have a more than fine time on this powerful, RAM packed and GPU rich machine but having the unique ability to host four independent gamers, each with two overclocked cores and an additional two threads as well as a Radeon 280 a chair has my mind boggled at the potential of the Intel 8-core monsters that have just been unleashed upon us. Although it may be priced a tad high I think there is a value in having such an innovative product to your name and I do think that will pay off for their brand long-term.
Honorable mention to the Origin machine putting out 8-cores and SLI Titan Z's for $10K, the Falcon machine at $7K also giving us 8-cores and SLI Titan Black's and the Xotic rig which, at $5.5K is maybe a big too much for the higher six core CPU with SLI 780 ti's and a low amount of RAM. Hope you all gave these machines the once over. There is a lot of power and a lot of possibilities on the horizon and for me the winner, Digital Storm, will be rocking that machine for many years to come.