why in god's name would you put clarion and pioneer in the same bin as dual?

for me, i'd have to say alpine or pioneer for HU's (and someone is going to come out of the woodwork screaming about eclipse... but i've never owned one, so i don't know), elemental designs or image dynamics for subs, DLS for everything else. i realize that's not ten, but i can't even think of 5 other brands i like as much as those.