Two Back Attack is the norm... Who's got the best?

I was scanning over the article on the front page of SR, and it got me thinking... More teams have the 2 back attack than teams that don't. Now, not all of them have Deuce and Reggie (which is the best IMO) but the majority of teams now have at least two RBs that see a good amount of time in each game. So that brings me to this question, who's 2 back attack is the best?

NYG - Barber and Jacobs (before Barber retired of course)
Dal - M. Barber and J. Jones
Philly - Westbrook and Buckhalter
Wash - Portis and Betts

Chi - Jones and Benson
Det. G.B. and Minn. don't have it.

N.O. McAllister and Bush
Car - Foster and Williams
T.B. - Williams and Pittman
Atl - Dunn and Norwood

Sea. St. Louis. S.F. and Ari don't use it.

N.E. - Dillon and Maroney
NYJ - Washington and Houston and Barlow
Mia - Ronnie Brown and Ricky Williams (when he's not in Canada)
Buff - don't have it.

Pitt. - Nope
Cincy - Johnson and Perry (if Perry could ever stay healthy)
Cle. - nope
Balt. - Lewis and Smith

Indy - Addai and Rhodes
Jax - Taylor and Jones-Drew
Hou. Nada
Tenn - Henry, Brown, and White

Den - Bell and Bell
S.D. - Tomlinson (and Michael Turner, but they don't use him enough)
K.C. - don't use it.
Oak - sucks, but you could say Jordan and Fargas.