I'm interested in this topic, too. Being not very experienced, I can't offer much insight, but so far:
Caron: darkness to the base
Chanel: deft mixes of very fine naturals and synthetics
Mugler: loud, high-longevity
Usually noses have more of a signature than houses do, so if a certain house uses the same nose for many projects, it shows, ex. Lutens.
Would love to hear from those who know a lot more than I do (pretty much everyone here).