Philly did open at +6.5 today and everyones already crunching it. Not for any other reason that of the 5 SB wins all have been by only 3 or 4 points*.
The 6.5 makes perfect sense, it will end up about 3.5 though so we may not jump in.
(last year was a 6pt win but technically a 'tie' at full time due to OT win - whatever, its rare for a blowout at anytime from these dudes).