Hmm, I like all of them, but with Raidho I only like the tweeter. Those little woofers are a joke.
I also agree with Ron WRT vocals and horns. If you think about it, horns are going to introduce some colorations due to the mechanism that makes them work in the first place, the horn's shape isn't set in stone as to what works best and neither are the materials the horn is made of, which also contribute to the sound you're hearing.
Vocals are one of the most familiar of sounds to our ear and timbre tends to be complex, so it is good test material, possibly the best. The fact many of us hear this also means that the timbre of everything else is being altered by the horn as well, but our reference for this isn't as good as vocals and we simply miss it, but that doesn't mean it isn't there... it HAS to be.
So while my preference is horns for various reasons I'm not going to pretend they are the pinnacle of audio reproduction, in some genres it may be true but it's not a universally accepted fact or even a close.