I just did a quick schedule comparison for the rest of the season and the remaining schedules definitely favor the Brewers in just about every comparison. Here's some of the key comparisons.

Home vs. Away Cubs 19 - 25 Brewers 23 - 21

Strength of Opponent
Cubs 23 games against playoff contending teams
Brewers 18 games against playoff contenders
(St.L,NY,LA,Phil,AZ,Chi,FL,Milw)

Games remaining against last place teams

                         Cubs 9   Brewers 14       
If you include Pitts     Cubs 12  Brewers 23