Saying that the sox have the edge over the Rays in terms of pitching staff is kinda overstating things, eh? Right now, the sox starters are 29th in the league in ERA, sitting at a dismal 5.90. Only last yr's champs are worse (Philly is at 6.17). Granted, TB isnt blowing the doors off teams, but they do hold a firm 0.82 edge over the sox in terms of starters ERA.
Second, I think the Rays are going to have a higher than normal BABIP mostly due to their speed. Guys like Crawford, Upton, Bartlett, Iwamura, and Navarro all can beat out the infield grounders, making them hell to get out of innings or to keep them from advancing.
Third, I would still take the sox offense over the long haul. The sox score more runs, have more power and are on base more.
Overall, I would consider the two teams pretty even when all things are considered. Defense, speed and starting pitching are in the Ray category. Bullpen, power and on base percentage are in the sox category.