After looking at it, coalgirls does seem to have a better video (like super slight). Especially in image #11. In image #3, the lines are again sharper (see the junction of the round thingy at the end of red handle ange is gripping on. The red lights on dragon are more sharper, and even the left eye of ange looks a bit more sharp and well resolved than commie's. Image #12, the CGi image is sharper again compared to others, just look at mama's lipstick.
Mottoj is out of competition with video quality though.
(All compared on macros74 upload)
Subs wise, I would do go with coalgirls cause it's been a little more edited, so...
P.S: @macros74, Had started downloading, figured might as well upload some comparison before deleting them. Still got episode 1 to 3, will delete those after a decision has been reached.