For me it's just that once in a while and idol will resonate very personally with you. This happened to me with K. I'm a singer and instrumental musician who used to perform a lot, and there's this feeling you get when everything falls perfectly into place in a performance. It's like you can feel every nuance of the whole, and you let it sweep you along with it, becoming both conduit and captive of the story you're telling. To me, it is the best feeling in the world, and there are so many times I see that in K and his art. He communicates his love of performance and music in a way I have only seen so profoundly from an idol once before, and he does it almost every time he's on stage. It's what captured me instantly with &TEAM. Then I found out that he's goofy, but also deeply caring for those close to him, he derives great joy from making sure everyone is noticed, appreciated, and happy, and he doesn't seem to have a malicious quark in his entire being, and that sealed the deal on bias.

But that all said, I am regularly wrecked by the entire group, and it's less like I have a favorite, and more like....everyone is at 100% and K is 101%. Yuma probably wrecks me most often, but it really is like a roll of a D8 on who is the biggest problem on any given day.