Too early to predict except based on last season and the East champs are down 3 starters on offense and 1 on defense and are looking to 2 rookies to fill 2 of those spots.
I also missed it poorly last season on the Eagles after seeing that intro pc of their HC, Sirianni. I think he should have been HC of the year bringing that team together as he did.
If I just compare the teams at QB, the Cowboys get the nod. The other 3 teams all have QB's on prove it with a better crop of QB's coming out next draft.
However, when I compare the trenches, the Eagles get the nod by a pretty wide margin. They could have the combo DL/OL in the entire league. And their backers are good as well.