i went for capt. fantastic and the dirt brown cowboy.
Looking past the obvious, and oft reviewed brilliance of the 70's (and less so 80's), their still coming up with gold in the oughts. The song "I want love" was as amazing as it was simple, and I think thats one of the things that the really great teams can do. Be soaring and visual in common worRAB and phrasing.
A lot of Fats Domino had the ability to be that simplistic and beautiful but on this list I'd have to say that Elton and Bernie have had a consistnt and elongated track record of making song, whether strung out on coke or sobered up witht he wisdom of age, they have some strong showings that are proving to be more timeless as we go forward.
Edit: It won't come as a shock to many people but I'm going to be a **** here and say that while Kathleen Brennan gets song writing credit, shes more of a muse as i've come to understand it and while its techinically a team, I don't know how much I want to include them (or how much as blinded by my own love).