What engine compartment color do you think?
I say paint the outside whatever you want, that's the thing.... Mopar has an awesome palette of colors to choose from that will keep it " factory looking " but still stand out in a crowd of the norm.
I personally like body color engine bays... I'm not the type to say that black is a chevy thing..... I personally think that primer and CERTAIN variations of black finish look like " that guy must have ran out of money for paint or didn't think the engine bay was worth the extra effort or whatever the case may be " however if sone right... I think a nice gloss black on a lightly colored car looks very nice!.
I agree , black will be easier to " hide grime" but for me personally..... I have enough time and effort into making my engine look good and be proud of it... That my painted engine bay gives me that much more reason to want to keep under the hood just as clean as the outside.
But to each his own.... Either way, do it how you want with the colors you want and in the end it will still be cool and get a bunch of looks because it's a mopar.
Just take everyones opinions and use them how you would like, I'm sure it will look great either way and good luck