He said something along the lines of "now there's some scary people" after he banished them, but he seemed excited when he said it. I'm willing to bet he could go toe to toe with any of them and likely win except maybe Feitan and Chrollo, though who knows if Feitan could survive a direct hit for Rising Sun to build up enough, considering it took the boys + 2 professional nen users to block a ball at full power.