It's no surprise that Toshiro is that powerful, unhindered by emotions and a moral code. After all, he did basically tame a dragon. He's just pure, undiluted power now, so it'll be interesting to see Mayuri "experiment". Mayuri, by the way, still creepy as always.
Man, Ikkaku and Yumichika are two of my favorites too. I'm not afraid of them dying because I forbid it.
Yumichika's shikai is pretty awesome by the way, and it sucks we've only gotten to see it once or twice.
Despite all the interesting development, every time I read a new chapter I can't help but wonder where the fuck Grimmjow is.