The only similarity Florida and Paris have is they both take place in Adventureland and adopt a more tropical atmosphere, eschewing the New Orleans related theming. Other than that, they're very different. I've ridden the Florida and Paris versions in person, but even someone who has only seen videos of the rides should be able to see how different they are. In terms of the ride itself, Paris is at least about on par with Disneyland's in terms of content and quality. Arguably better in some ways.Disneyland is better. Period. Florida is a cliff notes version, paris is a better version of florida's short version, Tokyo's is a wannabe version of Disneyland's only with less impressive caves and. O waterfall at the end. And Shanghai does not even belong in this conversation since it is "The Ride based on the movie of the original ride". It is a completley different thing. And no, while I have not personally ridden them all, I have seen enough on ride videos to form an opinion.
Are you talking about adding another Barbossa? He's already in the Florida Project, up on the ship attacking the fort (presumably for hiding Captain Jack Sparrow).Putting the Barbossa figure in Florida's version would be an even bigger mistake. It would be just as intrusive, but the continuity would be even more messed up. The scene directly precedes the ship attacking the fort and would ruin the buildup of this reveal.