IMO, here's what I think:
Best O-line: St. Louis Rams, I say this because I run the full house with them and I run with Stephen Jackson 75 % of the time, and that d@mn line hasnt failed me yet.
Best Dline- Steelers or GMEN
Secondary-Seattle Seahawks/Green Bay, Seattle is the best kept seret defensive team this year, They have DBs who have crazy height, and and man coverage ratings, Brandon Browner 6'4 88 speed, like 95 jumpig, his man coverage is decent, Sherman is 6'3, with high jumping ability, decnt speed,marcus trufant has 91 man coverage, decent speed, number DB on the team, then you have 6'3 kam Chancellor, 94 hit power, play good zone, and can tackle ok.and earl thomas, proboably the only FS in the game that can EFFECTIVELY play man and zone coverage which is rare, 93 speed. you run a nickle with seattle and its deadly. i know man coverage sucks this year, ive tried eagles, and yes even the raiders (blah!) and i havent had no success with these teams like ive had with seattle. Im convinced to play effectively play man coveage this year your secondary has to have the good combinaton of height, and good speed, but height is more important than speed i think, because with oakland, ive goten burnt so man times, but with seattle, i get 4-5 picks a game because they have the height advantages. i would say philly, but for some reason, they suck in madden this year (2ndary wise), which baffles me.ive lost every game with them.but i'll be persistent i guess lol.but anyway thats my opinion.