There are a lot of talking heads who have jumped aboard the Bills' bandwagon. I think part of it is Patriots fatigue in the AFC East. They are desperate to see a new king crowned, and they're really pumping up Josh Allen after two strong performances against sub-par teams.
The Rams, on the other hand, are getting some "pleasant surprise" comments, but I don't see a lot of people (outside of Colin Cowherd) buying in.
If the Rams put in a strong performance and beat the Bills, that should change a bit.
Not that it matters, but that seems to be the pulse of the national media right now.