Biggest Rivalry in football?

[Silverphin]

Packers & Bears

:sidelol: Nice sig.

But yeah, that is a very heated rivalry.

 

[Vertical Limit]

Browns vs Steelers are always fun. They literally, hate each other.

 

[Straztheman]

Fins vs. Pats

 

[BDC87]

I Live in Northern California, So I have to say the battle of the bays; SF vs Oak.