I debated the same thing, and I chose the covers.
sold them because Im doing brembos but was happy with them as an interim solution and would have kept them on indefinitely
They look nice and are of very good quality - they are pricey for what they are but its a quick, easy and clean install as opposed
to a drawn out and slower messier paint
project on an ugly hunk of metal
My personal opinion: plastic covers posing as brembo's like those found on ebay (Brembo logo and all!) = CHEEZ
MGP CC's = acceptable, more attractive than stock/generic OE calipers (which were especially boring and ugly on my '13 Durango)
also no need to choose a bright red cover, if you want to go more subtle and just "delete" most of the caliper (as opposed to attracting more attention to it) go with a color that blends with the body paint or the wheels, that was actually my goal