This is a really difficult thing to go by because of the talent of each roster. Joe Brady hasn't had much to work with. Its not like the Bills are swimming in talent at any position other then QB, and they're doing better with less at WR then previous years. On the other hand you have Ben Johnson clearly leading the better offense that is utterly stacked with talent across the board. They have 2 RB's who could start for most NFL rosters and two WR's that would be WR1's in most rosters. Also a top 10 TE and an Oline that is all first round picks (I think one of em may have been a 2nd or 3rd).
On the other hand, you have Moore. I find him to be very underwhelming. Stats aside, he had quite some talent with the Chargers, and their offense kept disappointing. Now he's with the Eagles, and aside from Barkley, their passing attack has been lackluster eerily similar to the Chargers. I'm just not impressed with Kellen Moore at all. It's not a coincidence that someone else takes over the Chargers, lose a key WR1 and a key RB1 and somehow immediately are doing much better offensively.