Hah, finally someone else that knows about the naughty Fred episode in Courage, made that reference so much in Miiverse and not many got it to my surprise... I couldn't attend to all of the Splatfests because I didn't have the game until about 3 months after release
But here are the Splatfests that I supported
Cars VS Planes: I went with cars because Airports are just awful to be in, and the staff always treats you like a terrorist...
Pirates VS Ninjas: Ninjas. Nuff said.
Burgers VS Pizza: I went with Burgers on this one, why? I always seem to enjoy a nice big juicy burger more over pizza, I usually just have 2 slices of pizza and I get fed up, its too much cheese (Nothing on cheese, I love it, it just gets me full quicker)
Naughty VS Nice: When I'm Nice, I'm Good... but when I'm Naughty, I'm Better. ;)
Past VS Future: I was torn on this one, I actually wouldn't mind traveling to the Past or the Future, but, I went with Past due to Dinosaurs.
Red VS Blue: I actually randomized this one, because I owned both at the same time, got both games on the same Christmas Night, and I have no preference on the first 3 starter Pokemon. I ended up on Red Team
Snowman VS Sandcastle: Apart from the thirty billion Frozen references that EVERYONE was expecting, I went with sandcastles on this one, due to the fact I live near a Desert, and it never snows here. Ever.
Sponge Bob VS Patrick: I also randomized this one, wasn't too fond of the series, ended up on Sponge Bob.
Fancy Party VS Costume Party: I went with Costume party because I like Cosplaying, and I like being silly as well; I wore a Banana suit for Halloween!
Early Bird VS Night Owl: I went with Night Owl because I always stay up late at night, not because I play games all night (Although that's a big part of the reason) but because I work as a Caretaker nurse from Night to Morning, obviously I went with Night Owl.
Callie VS Marie: And Finally, I went with Callie, I just prefer her optimistic attitude, and her cheery mood, and I prefer long hair over short (Or in this case Tentacles for hair)
As for the first five splatfests I missed out because I didn't have the game just yet, I had a chance to attend Science VS Art, but, I had a busy weekend at work and wasn't able to attend it.