I'd say that as a Chiefs fan too, but both the Chiefs and Raiders have lacked success for a bit, Broncos came across as arrogant and holier than thou as legit contenders of the weak division and with Shanahan on the sideline, I expect the Chiefs and Raiders to be the bigger rivalry going forward in the absence of the rat.
3 teams in the division changing coaches/identities, it'll be back to basics in no time (ie Chiefs and Raiders).
Our teams need to stop sucking so we can get some nice prime time action against each other.
The Raiders and Chiefs have been longer rivals due to their days in the AFL, but the Raiders and Broncos have been more heated because Shana-a$$ being a former Raider and those heated battle when Mr. Ed was the QB in Denver.
But I could not agree more with the undelined statement!:up