The Cardinals and Milwaukee Brewers, the two favorites in the National League Central Division and both playoff teams last season, have played two series of four games apiece this season. Little has been settled. The Cardinals won two of four in Milwaukee in April and the Brewers, by virtue of their 8-0 win at Busch Stadium Sunday, captured two games in this four-game set. Milwaukee came to town 3 1/2 games ahead of the Cardinals, which is the same margin with which they left town. The decisive blow was a three-run homer off the bat of Milwaukee’s Jace Peterson in the fifth inning. But, also d…