I guess I'm a fence sitter. If I had to make a judgment based only on the known evidence, I'd have to lean more toward RDI. Maybe I just have a hard time believing that Patsy could do that to JonBenet.
I have tried, several times, to think through or envision an IDI scenario. I've never been able to come up with one that was believable to myself. The pineapple is one of the problems for me to overcome when I'm attempting this. It would also have to be someone that wouldn't be missed on Christmas Day/Night.
I do feel that the Ramsey's acted guilty. I feel like if they didn't do it, then they know who did. But John Andrew is the only one I can think of that they'd do that for, and he has an (apparently) good alibi. (Would they protect Burke? Grandpa?)
I have a hard time believing that an intruder spent that much time in the house without leaving more evidence. Or that they even had the nerve to spend that much time there. I could see a friend of John Andrew's, maybe, who had been there before and knew that they couldn't be heard from upstairs. I could see this working with both the pineapple and the secret visit from Santa.
The most likely, IMO, is that Patsy did it. I saw a show years ago that had moms that had accidentally killed their children. One of them was angry with their child, and got so mad that she threw down the metal curtain rod that was in her hand. The rod took a bad bounce and struck the child (in the eye?) killing them. Point being, things can happen when a parent loses it. And I personally believe every parent loses it at some point.
It seems that either way I go, my decision doesn't "fit" for me, I can never decide with certainty. I've always admired people like Tricia that are so sure. When the John Mark Karr fiasco hit, I cried. I so wanted the person responsible to be caught that I just believed. Not Tricia! She came right out and plainly said that it wouldn't be him. I forgot her exact words, but I used them as my signature for the longest time. I just can't seem to get there, be it IDI or RDI. Probably why this case still haunts me, all these years later.