I don't quite understand the need for a lengthy discussion when obviously the translated spec sheet shows the pandaminer mines 230 MH/s while consuming 1600w whereas the E3 does 180 MH/s at only 800w. Thats like comparing pandaminer's 7 watts per 1 MH to bitmain's 4.5watts per 1 MH.

Seems pretty clear that the E3 is much more efficient and profitable option. I hope pandaminer gave that to you to review for free.