At least by Pro Football Focus:

Left Tackle: Jason Peters, 68.2
Left Guard: Stefen Wisniewski, 60.7
Center: Jason Kelce, 80.3
Right Guard: Brandon Brooks, 74.2
Right Tackle: Lane Johnson, 73.7

It seems like lifetimes ago the hot-button topic was whether or not the Birds should cut bait with center Jason Kelce.

Pundits weren’t wrong to ask the question either, as Kelce’s 2016 season was his lowest-graded since his rookie year of 2011 and the Eagles were in need of cap space.

Kelce’s rewarded their loyalty, though, with a career year in 2017 and is once again atop our center ranks in 2018:

https://www.profootballfocus.com/news/pro-week-5-nfl-offensive-line-rankings?