All that said, I'm going to go with the matte-black iPhone 7 Plus, shown here.

YouTube/Marques Brownlee

This one quote from Brownlee's video sealed the deal for me:

"I don't think I can seriously recommend [the jet-black iPhone 7] to anyone. It looks good when you keep it clean, which is what they were doing [in Apple's demo room], but not only is it going to be the slipperiest iPhone of all time, but it's also going to be super-prone to fingerprints, like Samsung phones, and scratches."

The jury's out on whether the jet-black iPhone 7 is actually more "slippery" than other iPhones, but to me, it's not worth the headache to be constantly worrying about fingerprints and scratches ruining the look of this phone. Sure, you could wear a case, but I think that ruins the point of buying a pretty-looking phone, I'm totally averse to phone cases in general.

So with that said, I'm going with the matte black: It's beautiful to look at, and it doesn't have the same fingerprint and scratching issues as the jet-black model. But if smudges and tiny scratches don't matter to you, pull the trigger on the jet-black iPhone 7. Otherwise, I think you'll be really happy with the matte black.