Her favorites are Onyx but they don't need a fancy house.

So... probably either Emerald or Coral? Probably Coral, since Fawn seems more the type to appreciate something like that. They would get nice fluffy pillows and a nice couch and maybe some paint and cozy lamps. Things to make it look homey and welcoming.

...of course, the imaginary host of trading spaces would need to take care of that, because Sakura isn't a very girls, interior-decorator sort of person.

If Raven were going to try a different hairstyle, what do you think would look good on him?