This topic needs more tags to be epic lol.
Anyway, I posted Aqua v. Sora and Roxas v. Ventus from the previous topic because:
1. They had the most votes at the time
and
2. They felt to me like they would be the most epic ones from that topic.
Kairi v. Aqua and Kairi v. Roxas were hardly going anywhere (I only thought of one way each that they could happen, and even then the reasons were really out there and the outcome was pretty much certain). Not to mention, there was a lot of redundancy and overlap (Kairi, Aqua, and Roxas in multiple options), and I wanted to sort of narrow the fights down to two different characters each. Hence, two non-overlapping options from the first topic, and a new one.
Kairi vs. Vanitas was added to this topic because:
1. It was new
and
2. It had several reasons it could happen, and there were different outcomes. Kairi could, by some sheer miracle of luck and only with Naminé's help, defeat Vanitas. Or he could fuse with her to create the X-Blade since she DOES have a heart of pure light (being a princess and all), and the fight could continue in her conscious with Naminé assisting or just have Kairi fighting Vanitas like how the last time the X-Blade was created and Ventus had to battle him.
EDIT:
If you're going to add tags, please make them relevant to the topic. Thank you!