Great question. I think it will do good, or at least better than any other line-up we have against y'all.
Millsap really excels when he is defender by a smaller, or similar size player to himself. He gives us an extra rebounder, which we will need to really win the battle of the glass to have any chance.
Jefferson has throughout his career had a fairly easy time scoring on Duncan.
Favors is a beast. I have seen some people call him undersized, which I do not understand. He has nearly the same measurements as Dwight Howard, but plays the PF position. He can erase anything at the rim and can finish over anyone. He lacks refined offense, but he will hustle under the rim and overpower weaker Spurs players. He is also a very good pick n roll player, unlike Jefferson.
I do fear Matt Bonner more than anyone. He haunts my dreams with his awkward release and fire truck hair. I've read he is historically poor in the playoffs? I can only hope so, because I view him as y'alls x-factor.