I think, if I had to limit myself to one pairing to read for the rest of my life, I'd choose D/C/S. Is that cheating? ;)

There had fucking better be a S7. In which there is MOAR MISHA than the five minutes we've had of him all this season. *mourns* And also they need to stop shouting at each other, oh, please, boys, be friends again so people will go back to writing good fic and lots of it. :(