I can barely tolerate Yukimura's types, especially as most of them are played in (for me) the most irritating way possible. The tee-hee schemer Who Knows Stuff is something that makes me want to tell them to shut up and get to the point. There is a character who's that type played exactly right and thus awesome, but it's a female character, so no one notices or acknowledges it. I also hate the trope of "I became a manslut because of my deep romantic angst which I deal with through a string of meaningless sexual encounters, deliberately choosing people I do not care about and won't want to remember their names." There's something about that trope that's disrespectful to everyone involved-including the dead love-and I hate that and the way it reduces sexual partners to disposable items, but most people just eat it up. And I get really twitchy when people pair them with anyone.

Sorry for the tangent.

(The type also tends to not be well developed past the surface, but everyone looks at the surface and exclaims over how wonderful and complex they are.)

SDK does, indeed, have a lot of characters. Too many for my tastes, actually, but that's rather normal for me and shounen action. At some point, it's "yes, ok, ENOUGH CHARACTERS!" Like Bleach? Kubo really needs to stop with the new characters now...