wtf resolutions are you testing? How about 1440p? Hardly ANYONE uses dual/triple monitor setups because the framerate sucks so entirely and 99% of the people on the planet don't have $5k to throw at a gaming PC. you are wasting your time. give us SINGLE monitor configs, for the love of god.
I imagine they're out there, but the only 1440p monitors I've ever seen in person are iMacs, and that's kind of irrelevant when reviewing a gaming PC. Most people either do 1080p [which they included], something close [like my precious 24 inch 1200p Dell] so that the 1080p benchmarks are relevant, or use multiple monitors.
Also, when you're talking about a 2500 dollar computer it only makes sense to spend serious coin on peripherals as well, especially monitors [whether it be multiple monitors or a 4K monitor], so I can believe that multi-monitor benchmarks would be relevant in this situation.