Ya, Patriots are the better team, and experience is difficult to quantify. That said, the pats haven't seen an offense like this. But don't forget, Atlanta wiped the floor with the best defense in the NFL to get here (Seattle), albeit without their best player (Earl Thomas).
Vegas wants Atlanta to win though, and it appears as though they refuse to push the line to +3.5 (almost everyone is taking NE). If they do, I'll be dropping some coin on Atlanta for sure. It started at -2.5, and they already pushed it to -3, which is the biggest line move possible in football due to the non linearities in scoring.