Haven't seen the Mopar one. I would have to really think really hard to ever buy a Bakflip again though. I know they are popular, but Mine was a nightmare.
Granted, I had a first gen BakFlip purchased in 06. Those were the ones that had gas struts to hold the cover against the cab in the fully open position. Everything went wrong with it. Hinges separating from the panels, probably due to the gas struts pushing on them, Rivets pulling through the panels, rubber seals peeling off, latching mechanism problems, etc. All of it happened right at the end of the warranty.
And even with the drain tubes, it leaked water horribly. The company was aware of many problems with the hinge separation and when I called about a replacement. a month out of warranty, they said they were aware of it, but would only offer a 25% discount on a G2.
I no nothing is perfect, but those covers are friggin expensive and I expected more.