QBPass Yds, TD/INT, Rating, Comp%, plus Rush Yds and Rush TDs for dual-threat seasons.
RBRush Yds, Carries, YPC, Rush TDs, plus Rec and Rec TDs. Receiving backs play better in RB/FLEX.
WR / TEYards, Rec, TD, and YPR. WR1 should be your biggest receiving season; TE should be a real weapon, not filler.
EDGESacks, TFL, QB Hits, tackles, and forced fumbles. Pressure is the premium defensive stat group.
DTSacks, TFL, QB Hits, and tackles. DT is about front strength, not just highlight sack totals.
LBTackles, TFL, sacks, INT, PD, and FF. LB mainly protects Run Defense, but playmakers help everywhere.
CB / SINT, PD, tackles, FF, and for safeties some sack value. Coverage players keep elite offenses from cracking the build.