This is such a pointless discussion.
Rebel Railroad was conceived as something less than a regional park more than a decade before the opening of WDW. By the time of the final rebranding to Dollywood in the mid-80's it sat on a piece of land that was never going to allow it to expand to anything beyond a regional park. That, combined with the mostly amusment-park style attractions and the fact that not only the park but the whole area around it being seasonal means it was never going to seriously compete with WDW.
I don't think management at Dollywould would disagree with any of that.
WDW was designed and conceived to be a global destination, Dollywood was not. Just the land prep and water management projects to begin construction of the MK and it's nearby resorts is probably more than was spent on the total construction of Dollywood to date when adjusted for inflation. There's just simply no comparing the two.
Disney's slowest park in Florida sees 10x the number of people Dollywood does in a year. If that number of peopel were to show up at the gates of Dollywood, they wouldn't even know what to do with them.
There may be some people seriously torn between a trip to Gatlenburg and Orlando but I doubt it's many. It's two entirely different experiences and going back to my original point, regardless of how good Dollywood's customer service is, that's not going to be the deciding factor for almost anyone.
Both can be good at what they do and despite in my opinion, serious slips on quality over the last decade or so in many aspects of the Disney experience, coupled with unsustainable price increases, they are still good at what they do - just not as good as they used to be.
Dollywood has, I think, consistently improved over the years for the most part but the two are simply too different for a fair comparison and while the whole IP thing is part of it, it's just one thing on a
very long list that separate the two places.
Maybe if they started investing in half-billion dollar attractions and were open year round and actually had the capacity to handle the volume Disney does, that would change things but then it also wouldn't be the Dollywood you know and love anymore so can we let go of the silly comparisons?