I think the record is 33-3-1 that the team winning the game also covered the spread. The one push was with St Louis vs Tenn.
The difference I see in that comparison in the NE vs Rams SB 2 years ago, has to be one , NE had a Def and Belichich, which won over the Offensive show of the Rams and dummy Coach Martz leading them. In this one, you still have Belichick leading his Def, and you have Brady running a very productive and efficient passing game. Carolina is no NE and NE this year is no Rams of two years ago. They were better two years ago, but this year they are not only better, but more experienced and have most of the pieces to start their dynasty run. Carolina, is beating guys by playing smash mouth run offense and defense. Only problem I see is that NE can do this as well, but also have the ability to also score with the best of em like they have proven able to do. I dont think Carolina can keep up if it comes down to this. GL which ever way you go, just wanted to share my opinion for what it is worth, Aloha CC.