Pro Football Focus (PFF) provides various team rankings based on their proprietary grading system, advanced metrics, and analysis of team units and overall roster strength.
PFF is always against the grid and does things way different than the masses, with their grading scales and rankings it's always fun to see where Pro Football Focus lands with their weekly team rankings.
Key for PFF's 2025 rankings:
PFF rankings: the relative quality of each team as defined by point spread team ratings.
Strength of schedule: The relative difficulty of each team's schedule based on point spread team ratings of opponents — 1 is hardest, 131 is easiest.