My preferences:

MacPherson Standard: Black
MacPherson Dress: Black
MacPherson Weathered: Brown
MacPherson Muted: Brown
Chattan Ancient: Black (I prefer black, but think brown would look just fine)
Chattan Modern: Black
Chattan Reproduction: Brown

I do wish Chattan Clan Modern was more widely stocked as I much prefer it to the ancient shades (and it doesn't appear that Dalgliesh normally stocks it). Maybe someday I'll have some woven up.