Jason Chilton posted an article yeaterday at sbnation on the read option.
Mentioning it here because he used 4 examples (with extremely nice wallpaper type pictures) of the Ravens alignments in the SB defending it.

http://www.sbnation.com/nfl/2013/9/9...tion-breakdown

Pictures are titled
1.The Ravens bring eight into the box during the Super Bowl

2.The Ravens blitz the slot corner (No. 24) and a linebacker to converge at the point of the handoff.

Don't know if this link will work, sometimes have to copy and paste, but it is to the biggie of the above picture they use (link tracked through Google)
http://cdn0.sbnation.com/imported_as..._10.51.16_.jpg

3.The Ravens' Paul Kruger (No. 99) attacks the backfield as the "overhang" defender

4.The 49ers run a triple option with LaMichael James and Frank Gore in the backfield.




If you put the elements of blitz pressure, two-gapping from the DL and overhang defenders together and said, "Huh - seems like maybe a 3-4 defense is better-suited to countering the read option " then you aren't alone. Many a chalkboard type seems to think this could be true, and looking back at the 2012 season provides a very small sample size but some potentially interesting data.
Very nice informative read for me also, I suspect more teams will consider switching to 3-4 after reading the stats.