Blackview V16 ZETA Versus DG Valencia 2 Y100, Which’s Better?

Same colorful back cover design, exactly the same MTK6592 Octa-core, similar price range, it appears that the new man Blackview V16 ZETA has targeted DOOGEE VALENCIA 2 Y100 as prime rival. Though ZETA has not reached us yet, why not make a comparison in advance?
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Basic specs
Blackview V16 ZETA Smartphone comes with MTK6592 1.4GHz Octa-core, Mali450-MP4 GPU and 1GB RAM+8GB ROM, along with 5-inch 720P screen with IPS technology, Android 4.4 KitKat OS, 2MP+5MP camera and 2050mAh battery.

DOOGEE VALENCIA 2 Y100 loads up with similar configurations, including MTK6592 1.4GHz Octa-core processor with IMG Rogue G6200 GPU, 1GB RAM+8GB ROM, 5-inch 720P HD screen with IPS OGS technology, 8MP sub camera, 13MP SONY CMOS main camera, smart gestures, OTA, OTG, HotKnot, 3 notification LEDS and 2200mAh battery.

Price range
Undoubtedly, $87.99 retail price derive from Blackview is way more tempting, at least it will be a good news for mid-range users. On the other hand, though the one from DG costs higher($114.99), it gives more functional and enjoyable experience accordingly. Of course, the gap between Blackview and DOOGEE is conspicuous, but is it the real difference?

Benchmark
Coincidentally, both devices are coming with same MTK6592 Octa-core processor, identical 1.4GHz frequency, therefore, it is not hard to tell them pretty similar in aspect of AnTuTu scores. See below the pic will you know them capable to breach 28000+ AnTuTu points easily.
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Shooting experience
Although Blackview V16 ZETA Smartphone is arriving in stock soon, but there is no suspense that DOOGEE takes the lead due to huge difference on camera combination (13MP to 5MP).

In general, we will do the contest again when ZETA is arrived, but seems that it is hard to make a choice between these two, lower cost or better user experience? Which one do you prefer?