A couple of other Interleague facts:

Through 2007 the AL has an advantage of 1387-1317. The NL won the head-to-head in 1997 (the first year), 1999,2002 and 2003.
Coming into this season, the Yankees have the best interleague winning pct. overall at .589, followed by the A's .582, the Marlins .565, and the Twins and Mariners at .552.
The Pirates (through 2007) have the worst interleague pct. at .377 while the Orioles have been worst in the AL at .409.
Also, after the 2007 season the best batting avg. in interleague belongs to Michael Young (.347), Thome leads in homers with 53 and Ramirez led with 139 RBIs. The overall RBI lead may have changed as Delgado finished 2007 with 138 career RBIs and ARod had 137.
Mussina led in wins with a 20-12 record and Johann Santana had the best ERA at 2.27 through '07. Rivera had a big lead in saves with 53.