BHall's 'worthy SAs' list from the old build advice forum. Which has been dead since like S40, so take with a grain of salt.
Originally posted by bhall43
QB: Pocket Presence, Tight Spiral, Pump Fake
RQB: Spin, Juke, Head Fake, Power Thru, Lower the Shoulder, Stiff Arm, Quick Cut, Demoralize (I also find Surge nice but some disagree)
Elusive Back: Spin, Juke, Head Fake, Quick Cut (Anything from the bottom tree as well)
Power Back HB/FB: The entire bottom tree, Surge, Hurdle (pretty much anything from the top tree outside of First Step)
Scat Back HB/FB: First step, Route Run, Scat Back, Sticky Hands, and then anything break tackle/fake related in the other backs mentioned above depending on build.
Speed WR: Juke, Head Fake, Catch Fake, First Step, Quick Cut, and then you could make arguments for Route Run or Sticky Hands.
Possession WR: Really depends on the build but Route Run and Sticky Hands are the obvious ones. Jump Catch maybe. Then any fake skills.
Power WR: Spin, Juke, Catch Fake, Lower the Shoulder, Power Thru, First Step, Head Fake (really a lot of debate on pretty much any of this but I would go with these for now over anything else)
Power TE: Lower the Shoulder for sure. Route Run, Quick Cut, and Sticky Hands I guess since they are in the tree. Then anything I listed above for WR here.
Rec TE: Quick Cut, Route Run, Sticky Hands for sure. First Step and Juke and/or Catch fake are large ones after.
Blk TE/FB: Pancake, Cut block, Lead Block, Get Low, Run Block, First Step, Spot Blitz (also note: Pummel and Aura of Intimidation)
Oline: Pancake, Get Low, Run Bock, Pass Block, First Step (OG's only), Shock Block, Protect (LT's only) (also note: Pummel and Aura of Intimidation)
DT: Wall, Break Thru, Shed Blocks, First Step, Swat Ball (supporting a PD line), Strong Base, Relentless Pursuit, Tunnel Vision (also note: Aura of Intimidation)
DE: The whole bottom tree, Relentless Pursuit, Swat Ball (supporting a PD line), Strong Base (strength DE), Wall (Strength DE) (also note: Aura of intimidation)
Cover CB: Swat Ball, Super Vision, Change Direction, First Step, Sticky Hands (INT CB), Shut Down Corner
Hard Hitter CB: Possibly Jackhammer, Monster Hit, Big Hit, Head Hunter, then kinda pick and choose from the regular CB stuff.
Blitz CB: First Step, Change Direction, Disguise Blitz, Head of Steam, Tunnel Vision, Blitz, Big Sack, Monster Hit, Head Hunter
SS: Zone Specialist, and then the top tree all good in their own way, Sticky Hands (INT SS), Bottom tree all good except Growl, First Step
FS: Zone Specialist, and then the top tree all good in their own way except maybe SDC, Bottom tree all good except Growl, Sticky Hands (INT FS)
LB: Use CB references accordingly imo between HH and Cover
Blitzing LB: First Step, Disguise Blitz, Head of Steam, Shed Blocks, Big Sack, Monster Hit, Tunnel Vision
K and P: All their SA's except Automatic for Kickers