Ups and downs abound When the Buffalo Bills face the Baltimore Ravens, two of the league’s premiere offenses will face off to jockey for early positioning in the AFC playoff race. It’s a little early to have a ton of validity in stats, but a few trends may be starting to shake out. For the Ravens, their pass defense seems to be a tantalizing matchup for the Bills. Baltimore is currently tied for the third-worst yards per passing attempt in the league at 7.8. They’re also third-worst at allowing passing touchdowns (seven allowed). Interestingly enough though, the Ravens lead the…