Laylee's my absolute favourite so far, I even took the liberty of drawing my own avatar of her. Really wanna see more of her witty, cynical and sarcastic dialogue, as well as how she will interact with Yooka. Characters like Laylee are my favourite type of character. And she's a bat, and anyone who's read Silverwing knows that bats make great characters partly due to their natural abilities.
I like Yooka for having what Banjo doesn't: actually having some unique abilities of his own rather than having the sidekick do all the cool stuff for him. Chameleons (and bats) are very unique creatures, and he and Laylee are perfect examples of how animals can make for some creative gameplay mechanics and amusing animations, which I wanna see more of in 'AAA' games (I hate that term.) I actually like him more than Banjo because of this. We haven't seen much dialogue from him yet, so I'm not sure how to think of him personality-wise at the moment.
The concept behind Capital B is simply wonderful. A villain being a stereotypical company executive speaking exclusively in corporate lingo is exactly what I needed to see following my frustrations with how the corporate the world has been turning into lately. He's guaranteed to generate some laughs with his jargon. I cannot wait to see what more he will say in the game.