The NFL Network just had Top 10 Biggest Homefield Advantage.

Chiefs #5 said they would have been #1 but they have only won 1 playoff game there ever.

Raiders #4
Partially because of Oaklands 14-3 Post Season Record

Baltimore #3 (Colts)

Denver Mile High #2 Before they rebuilt it.

Lambaugh Field Green Bay #1

Interesting how 3 of the top 5 are in the AFC West.