I don't think the Cowboys are as good as the Eagles in any aspect. We may have a few better individual players at certain positions but when you look at how they fare as a whole, I give the Eagles the edge in pretty much everything.
Coaching: Eagles, no explanation needed
QBs: Eagles
Running game: Cowboys but it's closer than you'd think. Zeke is better than any Eagles RB but their combination of Blount, Ajayi, and Clements works just as effectively.
Receivers (WR and TE): Eagles. Ertz is a Top-5 TE, probably even Top-3. You see how he can get open 1 on 1 outside vs. a DB, Witten can't do that anymore. They also get good production out of Trey Burton. The WRs are comparable but given what we're paying Dez, if the Eagles are getting similar production from their cheaper WRs, give them the edge.
Offensive Line: Eagles. Both teams have invested a lot and have great players. The difference maker is obviously the Eagles' ability to continue to be great when their LT gets injured.
Defensive Line: Eagles, don't even need to explain this
LBs: Eagles. Lee is better than any Eagles LB but their play as a whole unit is superior to the Cowboys, especially since they were able to weather the storm when their starting MLB went out.
Secondary: Eagles. Their CBs are the weakness of their defense just like our CBs have never been great either but Malcolm Jenkins is a stud safety that we are still searching for. And the interceptions numbers are not even close.
Kicker: Eagles. Their kicker just made clutch kicks in the playofffs (7/7) while Dan Bailey is recovering from an injury and looked shaky when he came back so who knows how he'll be in the future.
Punter: Even. Both are good punters, if you want to give the edge to Chris Jones since he's younger then fine