I love my blanket black and tans/brown (there is no such color as red). A close second would be the Bi's. The blacks are starting to grow on me since I have one. Sables I am fairly indifferent (I know, I am an odd ball for a working line owner). I have seen some that I find absolutely gorgeous, but most don't seem to really wow me. My least favorite is the plain old saddle patterned black and tans/browns.
I LOVE the dark sables..... *swoon* such as Missy's Akbar, Wanda's Max and Enzo are stunning to me... there are many other's on this board alone I can think of too, I won't bore you with my long list of loves..
If I was to get into the black and tans/reds, I would have to say that I like Stark's pattern the best. First time I have ever really seen/been aware that this coat pattern/colouration exsisted. He is considered a black and tan blanket back and I love his colouring too.