The 11 & 12's call for 5w-30. The 13's & 14's call for 5w-20 and (according to Chrysler) this is for improved fuel economy. The 0w-20 might be okay for colder climates, but personally I wouldn't use it.
the 0w20 and 5w20 will have the same characteristics at temp, but the 0w20 is better for colder weather like hands down.
Re: Which Full Synthetics meet the Chrysler Spec for the V6 (2014)?
First, pick your brand in the correct weight. Then check their website to make sure it "meets" Chrysler's spec (as posted in your manual). Watch out for terms like "exceeds". "Exceeds" doesn't necessarily mean they "meet" Chrysler's spec. It means they think they are better.