It looks like the second half schedule gives the Sox a slight advantage over the Twins. I broke down the AL Teams (and the Phillies) into three groups:
Group A - Playoff Caliber Teams (Yankees, Red Sox, A's, Angels, Rangers, White Sox, Twins and Phillies)
Group B - Not Ready For Primetime (Indians, Tigers, Devil Rays)
Group C - (Blue Jays, Orioles, Royals, Mariners)
Here is how the schedule breaks down:
Sox
A - 32
B - 29
C - 17
Twins
A - 39
B - 21
C - 15
The Sox have 78 games left with 32 against top teams while over half of the Twins 75 remaining games are against top competition. Advantage Sox.
19 of the Sox "B" games are against the Tigers. It wouldn't be at all surprising for the Tigers to start fading in the second half, especially considering that a quarter of their games are against the White Sox. I hope the Sox can at least do better than their 11-8 record against the 2003 version of the Tigers. Advantage Sox.
Also, 9 of the Twins "C" games are against the Orioles (6 at Canmden), a team that could arguably be in the "B" group. Advantage Sox.
You might quibble with the classifications for the Devil Rays and Blue Jays, but the Sox are done with both and the Twins only have two games left with Tampa. No matter which way you look at it, the Sox have an easier road to the playoffs than the Twins.