Interesting note the balt/denver game has a moneyline about the same. The nfc games are much tighter in the low-mid hundreds on both sides.....
That would be because the moneyline is more or less a ratio to the point spread. For example, Texans and Ravens are both about 9 pt dogs wereas the Packers and the Seahawks are (roughly) 3 pt dogs. The higher the point spread, the wider the gap in the favorite/underdog moneyline.
BALTIMORE +9, +355 (ml)
DENVER -9, -425 (ml)
GREEN BAY +3, +145 (ml)
SAN FRANCISCO -3, -165 (ml)
SEATTLE +2½, +125 (ml)
ATLANTA -2½, -145 (ml)
HOUSTON +9, +330 (ml)
NEW ENGLAND -9, -400 (ml)
Placing a bet on the Texan spread and winning would return most of your bet. Placing a bet on the Texans moneyline and winning would return your bet almost 3.3 times larger. The hard part is being correct....
bong: A prop bet involving the refs would probably be unlikely but you might be able to get/ask for one in Las Vegas.
Las Vegas, NFL, gambling go back a ways. IIRC, I believe it was Pete Rozell that had teams start issuing injury reports for the benefit of gamblers...